diff --git a/backend/internal/model/models.go b/backend/internal/model/models.go
index ef22ef2..6ebcb3d 100644
--- a/backend/internal/model/models.go
+++ b/backend/internal/model/models.go
@@ -136,14 +136,14 @@ type ReleaseRunStep struct {
 	ServiceName          string      `gorm:"size:32;index;not null" json:"service_name"`
 	PreviousReleaseID    string      `gorm:"size:128;index" json:"previous_release_id"`
 	Status               string      `gorm:"size:32;index;not null" json:"status"`
-	DeploymentID         uint        `gorm:"index" json:"deployment_id"`
+	DeploymentID         *uint       `gorm:"index" json:"deployment_id"`
 	Deployment           *Deployment `json:"deployment,omitempty"`
 	ErrorMessage         string      `gorm:"type:text" json:"error_message"`
 	LogExcerpt           string      `gorm:"type:text" json:"log_excerpt"`
 	StartedAt            *time.Time  `json:"started_at"`
 	FinishedAt           *time.Time  `json:"finished_at"`
 	RollbackStatus       string      `gorm:"size:32;index" json:"rollback_status"`
-	RollbackDeploymentID uint        `gorm:"index" json:"rollback_deployment_id"`
+	RollbackDeploymentID *uint       `gorm:"index" json:"rollback_deployment_id"`
 	RollbackDeployment   *Deployment `json:"rollback_deployment,omitempty"`
 	RollbackErrorMessage string      `gorm:"type:text" json:"rollback_error_message"`
 	RollbackLogExcerpt   string      `gorm:"type:text" json:"rollback_log_excerpt"`
diff --git a/backend/internal/service/manager.go b/backend/internal/service/manager.go
index 1f47c83..bd70ab8 100644
--- a/backend/internal/service/manager.go
+++ b/backend/internal/service/manager.go
@@ -455,7 +455,7 @@ func (m *Manager) ProcessReleaseRun(ctx context.Context, runID uint) error {
 			return err
 		}
 		step.Status = model.DeploymentSuccess
-		step.DeploymentID = deployment.ID
+		step.DeploymentID = &deployment.ID
 		completedSteps = append(completedSteps, step)
 	}
 
@@ -642,6 +642,7 @@ func (m *Manager) ProcessDeployment(ctx context.Context, deploymentID uint) erro
 
 		targetFinishedAt := time.Now()
 		if err != nil {
+			errorMessage := summarizeDeploymentError(err, output)
 			_ = m.db.WithContext(ctx).Model(&model.DeploymentTarget{}).
 				Where("id = ?", target.ID).
 				Updates(map[string]any{
@@ -654,10 +655,10 @@ func (m *Manager) ProcessDeployment(ctx context.Context, deploymentID uint) erro
 				Where("id = ?", deploymentID).
 				Updates(map[string]any{
 					"status":        model.DeploymentFailed,
-					"error_message": err.Error(),
+					"error_message": errorMessage,
 					"finished_at":   &targetFinishedAt,
 				}).Error
-			return err
+			return errors.New(errorMessage)
 		}
 
 		updates := map[string]any{
@@ -911,6 +912,26 @@ func summarizeBuildError(err error, output string) string {
 	return err.Error()
 }
 
+func summarizeDeploymentError(err error, output string) string {
+	lines := strings.Split(output, "\n")
+	for i := len(lines) - 1; i >= 0; i-- {
+		line := strings.TrimSpace(lines[i])
+		if line == "" || line == err.Error() {
+			continue
+		}
+		if line == "Traceback (most recent call last):" || strings.HasPrefix(line, "File ") {
+			continue
+		}
+		if strings.HasPrefix(line, "RuntimeError:") {
+			line = strings.TrimSpace(strings.TrimPrefix(line, "RuntimeError:"))
+		}
+		if line != "" {
+			return line
+		}
+	}
+	return err.Error()
+}
+
 func deploymentLogExcerpt(deployment *model.Deployment) string {
 	if deployment == nil {
 		return ""
diff --git a/frontend/src/constants/operator.ts b/frontend/src/constants/operator.ts
new file mode 100644
index 0000000..ec4e6d7
--- /dev/null
+++ b/frontend/src/constants/operator.ts
@@ -0,0 +1,3 @@
+// TODO: Replace this fallback with the authenticated user once identity is wired end-to-end,
+// then restore operator-related fields in the UI.
+export const defaultOperator = 'platform-admin'
diff --git a/frontend/src/pages/BuildsPage.tsx b/frontend/src/pages/BuildsPage.tsx
index 3918bfe..2507cd1 100644
--- a/frontend/src/pages/BuildsPage.tsx
+++ b/frontend/src/pages/BuildsPage.tsx
@@ -26,16 +26,15 @@ import { useEffect, useMemo, useState } from 'react'
 
 import { api } from '@/api/client'
 import StatusChip from '@/components/StatusChip'
+import { defaultOperator } from '@/constants/operator'
 import type { BuildJob, CatalogService } from '@/types'
 
 type FormState = {
   service_name: string
   release_id: string
   branch: string
-  operator: string
 }
 
-const defaultOperator = 'platform-admin'
 const activeBuildStatuses = new Set(['queued', 'running'])
 
 function formatDateTime(value?: string) {
@@ -56,8 +55,7 @@ export default function BuildsPage() {
   const [form, setForm] = useState<FormState>({
     service_name: '',
     release_id: '',
-    branch: 'main',
-    operator: defaultOperator
+    branch: 'main'
   })
 
   const selectedService = useMemo(
@@ -77,8 +75,7 @@ export default function BuildsPage() {
     setForm({
       service_name: first?.name ?? '',
       release_id: '',
-      branch: first?.default_branch ?? 'main',
-      operator: defaultOperator
+      branch: first?.default_branch ?? 'main'
     })
   }
 
@@ -141,7 +138,7 @@ export default function BuildsPage() {
 
   const createBuild = async () => {
     try {
-      const created = await api.createBuild(form)
+      const created = await api.createBuild({ ...form, operator: defaultOperator })
       setOpen(false)
       resetForm(services)
       setMessage('构建任务已创建，已打开实时构建日志')
@@ -267,11 +264,6 @@ export default function BuildsPage() {
               value={form.branch}
               onChange={(event) => setForm((prev) => ({ ...prev, branch: event.target.value }))}
             />
-            <TextField
-              label="操作人"
-              value={form.operator}
-              onChange={(event) => setForm((prev) => ({ ...prev, operator: event.target.value }))}
-            />
             <TextField label="仓库" value={selectedService?.repo ?? ''} slotProps={{ input: { readOnly: true } }} />
             <Typography variant="body2" color="text.secondary">
               平台会先在构建机本地源码目录中自动查找匹配仓库；找到后执行 `git fetch / checkout / pull`。如果本地没有对应仓库，再自动克隆到构建工作区。
diff --git a/frontend/src/pages/DeploymentsPage.tsx b/frontend/src/pages/DeploymentsPage.tsx
index 29979dd..c281484 100644
--- a/frontend/src/pages/DeploymentsPage.tsx
+++ b/frontend/src/pages/DeploymentsPage.tsx
@@ -1,8 +1,11 @@
 import {
   Alert,
+  Box,
   Button,
   Card,
   CardContent,
+  Chip,
+  CircularProgress,
   Dialog,
   DialogActions,
   DialogContent,
@@ -24,32 +27,31 @@ import { useNavigate } from 'react-router-dom'
 
 import { api } from '@/api/client'
 import StatusChip from '@/components/StatusChip'
-import type { Deployment, ReleaseRun } from '@/types'
+import { defaultOperator } from '@/constants/operator'
+import type { Deployment, DeploymentTarget, ReleaseRun } from '@/types'
 
 type DeploymentFormState = {
   service_name: string
   release_id: string
   operation: string
-  operator: string
 }
 
 type ReleaseRunFormState = {
   release_id: string
-  operator: string
 }
 
 const emptyDeploymentForm: DeploymentFormState = {
   service_name: 'user',
   release_id: '',
-  operation: 'deploy',
-  operator: 'platform-admin'
+  operation: 'deploy'
 }
 
 const emptyReleaseRunForm: ReleaseRunFormState = {
-  release_id: '',
-  operator: 'platform-admin'
+  release_id: ''
 }
 
+const activeDeploymentStatuses = new Set(['queued', 'running'])
+
 function stepSummary(run: ReleaseRun) {
   return (run.steps ?? []).map((step) => ({
     key: `${run.id}-${step.sequence}`,
@@ -60,14 +62,29 @@ function stepSummary(run: ReleaseRun) {
   }))
 }
 
+function formatDateTime(value?: string) {
+  if (!value) return '-'
+  return new Date(value).toLocaleString()
+}
+
+function targetLabel(target: DeploymentTarget) {
+  const hostName = target.host?.name || `host-${target.host_id}`
+  const privateIP = target.host?.private_ip
+  return privateIP ? `${hostName} · ${privateIP}` : hostName
+}
+
 export default function DeploymentsPage() {
   const navigate = useNavigate()
   const [deployments, setDeployments] = useState<Deployment[]>([])
   const [releaseRuns, setReleaseRuns] = useState<ReleaseRun[]>([])
   const [deploymentOpen, setDeploymentOpen] = useState(false)
   const [releaseRunOpen, setReleaseRunOpen] = useState(false)
+  const [detailOpen, setDetailOpen] = useState(false)
   const [deploymentForm, setDeploymentForm] = useState<DeploymentFormState>(emptyDeploymentForm)
   const [releaseRunForm, setReleaseRunForm] = useState<ReleaseRunFormState>(emptyReleaseRunForm)
+  const [selectedDeploymentID, setSelectedDeploymentID] = useState<number | null>(null)
+  const [selectedDeployment, setSelectedDeployment] = useState<Deployment | null>(null)
+  const [detailLoading, setDetailLoading] = useState(false)
   const [message, setMessage] = useState('')
   const [error, setError] = useState('')
 
@@ -86,7 +103,7 @@ export default function DeploymentsPage() {
 
   const createDeployment = async () => {
     try {
-      await api.createDeployment(deploymentForm)
+      await api.createDeployment({ ...deploymentForm, operator: defaultOperator })
       setDeploymentOpen(false)
       setDeploymentForm(emptyDeploymentForm)
       setMessage('单服务部署任务已创建')
@@ -98,7 +115,7 @@ export default function DeploymentsPage() {
 
   const createReleaseRun = async () => {
     try {
-      await api.createReleaseRun(releaseRunForm)
+      await api.createReleaseRun({ ...releaseRunForm, operator: defaultOperator })
       setReleaseRunOpen(false)
       setReleaseRunForm(emptyReleaseRunForm)
       setMessage('总发布任务已创建，将按 user -> pay -> gateway 执行')
@@ -110,7 +127,7 @@ export default function DeploymentsPage() {
 
   const rollback = async (row: Deployment) => {
     try {
-      await api.rollbackDeployment(row.id, { release_id: row.release_id, operator: 'platform-admin' })
+      await api.rollbackDeployment(row.id, { release_id: row.release_id, operator: defaultOperator })
       setMessage('回滚任务已创建')
       await load()
     } catch (err) {
@@ -118,6 +135,27 @@ export default function DeploymentsPage() {
     }
   }
 
+  const loadDeploymentDetail = async (id: number, silent = false) => {
+    if (!silent) {
+      setDetailLoading(true)
+    }
+    try {
+      const data = await api.getDeployment(id)
+      setSelectedDeployment(data)
+    } catch (err) {
+      setError(err instanceof Error ? err.message : '加载部署详情失败')
+    } finally {
+      setDetailLoading(false)
+    }
+  }
+
+  const openDeploymentDetail = (row: Deployment) => {
+    setSelectedDeploymentID(row.id)
+    setSelectedDeployment(row)
+    setDetailOpen(true)
+    void loadDeploymentDetail(row.id)
+  }
+
   return (
     <Stack spacing={3}>
       <Card>
@@ -161,7 +199,6 @@ export default function DeploymentsPage() {
                   <TableCell>版本</TableCell>
                   <TableCell>状态</TableCell>
                   <TableCell>阶段</TableCell>
-                  <TableCell>操作人</TableCell>
                   <TableCell>错误</TableCell>
                   <TableCell align="right">动作</TableCell>
                 </TableRow>
@@ -195,7 +232,6 @@ export default function DeploymentsPage() {
                         ))}
                       </Stack>
                     </TableCell>
-                    <TableCell>{run.operator}</TableCell>
                     <TableCell sx={{ maxWidth: 320 }}>
                       <Typography variant="body2" color="text.secondary">
                         {run.error_message || '-'}
@@ -228,7 +264,7 @@ export default function DeploymentsPage() {
                   <TableCell>版本</TableCell>
                   <TableCell>操作</TableCell>
                   <TableCell>状态</TableCell>
-                  <TableCell>操作人</TableCell>
+                  <TableCell>错误</TableCell>
                   <TableCell align="right">动作</TableCell>
                 </TableRow>
               </TableHead>
@@ -242,11 +278,20 @@ export default function DeploymentsPage() {
                     <TableCell>
                       <StatusChip status={row.status} />
                     </TableCell>
-                    <TableCell>{row.operator}</TableCell>
+                    <TableCell sx={{ maxWidth: 360 }}>
+                      <Typography variant="body2" color="text.secondary">
+                        {row.error_message || '-'}
+                      </Typography>
+                    </TableCell>
                     <TableCell align="right">
-                      <Button size="small" disabled={!row.release_id} onClick={() => void rollback(row)}>
-                        回滚到此版本
-                      </Button>
+                      <Stack direction="row" spacing={1} justifyContent="flex-end">
+                        <Button size="small" onClick={() => openDeploymentDetail(row)}>
+                          查看详情
+                        </Button>
+                        <Button size="small" disabled={!row.release_id} onClick={() => void rollback(row)}>
+                          回滚到此版本
+                        </Button>
+                      </Stack>
                     </TableCell>
                   </TableRow>
                 ))}
@@ -266,11 +311,6 @@ export default function DeploymentsPage() {
               value={releaseRunForm.release_id}
               onChange={(e) => setReleaseRunForm((prev) => ({ ...prev, release_id: e.target.value }))}
             />
-            <TextField
-              label="操作人"
-              value={releaseRunForm.operator}
-              onChange={(e) => setReleaseRunForm((prev) => ({ ...prev, operator: e.target.value }))}
-            />
           </Stack>
         </DialogContent>
         <DialogActions>
@@ -310,11 +350,6 @@ export default function DeploymentsPage() {
               value={deploymentForm.release_id}
               onChange={(e) => setDeploymentForm((prev) => ({ ...prev, release_id: e.target.value }))}
             />
-            <TextField
-              label="操作人"
-              value={deploymentForm.operator}
-              onChange={(e) => setDeploymentForm((prev) => ({ ...prev, operator: e.target.value }))}
-            />
           </Stack>
         </DialogContent>
         <DialogActions>
@@ -325,6 +360,121 @@ export default function DeploymentsPage() {
         </DialogActions>
       </Dialog>
 
+      <Dialog open={detailOpen} onClose={() => setDetailOpen(false)} fullWidth maxWidth="lg">
+        <DialogTitle>部署详情</DialogTitle>
+        <DialogContent dividers>
+          {detailLoading && !selectedDeployment ? (
+            <Stack alignItems="center" justifyContent="center" sx={{ py: 8 }}>
+              <CircularProgress size={28} />
+            </Stack>
+          ) : selectedDeployment ? (
+            <Stack spacing={2}>
+              <Stack direction={{ xs: 'column', lg: 'row' }} spacing={1.5} justifyContent="space-between">
+                <Stack spacing={1}>
+                  <Typography variant="h6">{`${selectedDeployment.service_name} · ${selectedDeployment.release_id || '-'}`}</Typography>
+                  <Stack direction="row" spacing={1} useFlexGap flexWrap="wrap">
+                    <Chip size="small" variant="outlined" label={`任务 #${selectedDeployment.id}`} />
+                    <Chip size="small" variant="outlined" label={`操作 ${selectedDeployment.operation}`} />
+                    <Chip
+                      size="small"
+                      variant="outlined"
+                      label={`开始 ${formatDateTime(selectedDeployment.started_at || selectedDeployment.created_at)}`}
+                    />
+                    <Chip size="small" variant="outlined" label={`结束 ${formatDateTime(selectedDeployment.finished_at)}`} />
+                  </Stack>
+                </Stack>
+                <Stack direction="row" spacing={1} alignItems="center">
+                  <StatusChip status={selectedDeployment.status} />
+                  <Button
+                    variant="outlined"
+                    onClick={() => selectedDeploymentID && void loadDeploymentDetail(selectedDeploymentID, true)}
+                  >
+                    立即刷新
+                  </Button>
+                </Stack>
+              </Stack>
+
+              {activeDeploymentStatuses.has(selectedDeployment.status) ? (
+                <Alert severity="info" variant="outlined">
+                  当前任务仍在执行，目标机状态和日志需要手动刷新查看最新结果。
+                </Alert>
+              ) : null}
+
+              {selectedDeployment.error_message ? (
+                <Alert severity="error" variant="filled">
+                  {selectedDeployment.error_message}
+                </Alert>
+              ) : null}
+
+              {(selectedDeployment.targets ?? []).length === 0 ? (
+                <Alert severity="info" variant="outlined">
+                  当前任务还没有目标机执行记录。
+                </Alert>
+              ) : (
+                <Stack spacing={1.5}>
+                  {(selectedDeployment.targets ?? []).map((target) => (
+                    <Box
+                      key={target.id}
+                      sx={{
+                        border: '1px solid rgba(53,80,161,0.1)',
+                        borderRadius: 3,
+                        overflow: 'hidden',
+                        backgroundColor: 'rgba(53,80,161,0.02)'
+                      }}
+                    >
+                      <Stack
+                        direction={{ xs: 'column', sm: 'row' }}
+                        spacing={1}
+                        justifyContent="space-between"
+                        alignItems={{ sm: 'center' }}
+                        sx={{ px: 2, py: 1.5, borderBottom: '1px solid rgba(53,80,161,0.08)' }}
+                      >
+                        <Stack spacing={0.5}>
+                          <Typography variant="subtitle2">{targetLabel(target)}</Typography>
+                          <Typography variant="body2" color="text.secondary">
+                            {`开始 ${formatDateTime(target.started_at)} · 结束 ${formatDateTime(target.finished_at)}`}
+                          </Typography>
+                        </Stack>
+                        <Stack direction="row" spacing={1} alignItems="center">
+                          <Chip size="small" variant="outlined" label={`步骤 ${target.step || '-'}`} />
+                          <StatusChip status={target.status} />
+                        </Stack>
+                      </Stack>
+                      <Box
+                        component="pre"
+                        sx={{
+                          m: 0,
+                          px: 2,
+                          py: 1.5,
+                          maxHeight: 320,
+                          overflow: 'auto',
+                          whiteSpace: 'pre-wrap',
+                          wordBreak: 'break-word',
+                          fontSize: 13,
+                          lineHeight: 1.7,
+                          fontFamily: '"SFMono-Regular", "Roboto Mono", "Menlo", monospace',
+                          backgroundColor: 'rgba(16,24,40,0.98)',
+                          color: 'rgb(231, 239, 255)'
+                        }}
+                      >
+                        {target.log_excerpt || '无日志输出'}
+                      </Box>
+                    </Box>
+                  ))}
+                </Stack>
+              )}
+            </Stack>
+          ) : (
+            <Alert severity="warning" variant="outlined">
+              未找到该部署任务。
+            </Alert>
+          )}
+        </DialogContent>
+        <DialogActions>
+          <Button onClick={() => setDetailOpen(false)}>关闭</Button>
+        </DialogActions>
+      </Dialog>
+
       <Snackbar open={Boolean(message)} autoHideDuration={3000} onClose={() => setMessage('')}>
         <Alert severity="success" variant="filled">
           {message}
diff --git a/frontend/src/pages/ReleaseRunDetailPage.tsx b/frontend/src/pages/ReleaseRunDetailPage.tsx
index f6f6b61..eaddcd8 100644
--- a/frontend/src/pages/ReleaseRunDetailPage.tsx
+++ b/frontend/src/pages/ReleaseRunDetailPage.tsx
@@ -637,7 +637,6 @@ export default function ReleaseRunDetailPage() {
               </Box>
               <Stack direction="row" spacing={1} useFlexGap flexWrap="wrap" alignItems="flex-start">
                 <StatusChip status={run.status} />
-                <Chip variant="outlined" label={`操作人 ${run.operator || '-'}`} />
                 <Chip variant="outlined" label={`成功阶段 ${summary.succeeded}`} />
                 <Chip variant="outlined" label={`失败阶段 ${summary.failed}`} />
                 <Chip variant="outlined" label={`已回滚 ${summary.rollbacked}`} />
diff --git a/frontend/src/types/index.ts b/frontend/src/types/index.ts
index 1237533..ef34ac8 100644
--- a/frontend/src/types/index.ts
+++ b/frontend/src/types/index.ts
@@ -73,6 +73,8 @@ export interface DeploymentTarget {
   status: string
   step: string
   log_excerpt: string
+  started_at?: string
+  finished_at?: string
   host?: Host
   service_instance?: ServiceInstance
 }
@@ -87,6 +89,7 @@ export interface Deployment {
   trigger_source: string
   error_message: string
   created_at?: string
+  started_at?: string
   finished_at?: string
   targets?: DeploymentTarget[]
 }
@@ -98,11 +101,11 @@ export interface ReleaseRunStep {
   service_name: string
   previous_release_id: string
   status: string
-  deployment_id: number
+  deployment_id: number | null
   error_message: string
   log_excerpt: string
   rollback_status: string
-  rollback_deployment_id: number
+  rollback_deployment_id: number | null
   rollback_error_message: string
   rollback_log_excerpt: string
   created_at?: string