diff --git a/scripts/mysql/039_disable_manager_resource_grants.sql b/scripts/mysql/039_disable_manager_resource_grants.sql
new file mode 100644
index 00000000..cde0b1ee
--- /dev/null
+++ b/scripts/mysql/039_disable_manager_resource_grants.sql
@@ -0,0 +1,8 @@
+USE hyapp_wallet;
+
+ALTER TABLE resources
+  MODIFY COLUMN manager_grant_enabled BOOLEAN NOT NULL DEFAULT FALSE COMMENT '管理端是否允许发放';
+
+UPDATE resources
+SET manager_grant_enabled = FALSE
+WHERE manager_grant_enabled <> FALSE;
diff --git a/server/admin/internal/modules/resource/request.go b/server/admin/internal/modules/resource/request.go
index fa896263..d1239e9d 100644
--- a/server/admin/internal/modules/resource/request.go
+++ b/server/admin/internal/modules/resource/request.go
@@ -460,7 +460,7 @@ func (r resourceShopItemsRequest) upsertProto(c *gin.Context) *walletv1.UpsertRe
 }
 
 func managerGrantEnabledOrDefault(value *bool) *bool {
-	enabled := true
+	enabled := false
 	if value != nil {
 		enabled = *value
 	}
diff --git a/server/admin/internal/modules/resource/request_test.go b/server/admin/internal/modules/resource/request_test.go
index 46174d39..2082c487 100644
--- a/server/admin/internal/modules/resource/request_test.go
+++ b/server/admin/internal/modules/resource/request_test.go
@@ -52,6 +52,38 @@ func TestGiftRequestProtoClearsCPRelationTypeForNonCPGift(t *testing.T) {
 	}
 }
 
+func TestResourceRequestDefaultsManagerGrantDisabled(t *testing.T) {
+	req := resourceRequest{
+		ResourceCode: "badge_default_manager_disabled",
+		ResourceType: resourceTypeBadge,
+		Name:         "Default Manager Disabled Badge",
+		Status:       "active",
+	}
+
+	proto := req.createProto(newGiftRequestTestContext())
+
+	if proto.ManagerGrantEnabled == nil || proto.GetManagerGrantEnabled() {
+		t.Fatalf("manager grant should default to disabled, got %v", proto.GetManagerGrantEnabled())
+	}
+}
+
+func TestResourceRequestKeepsExplicitManagerGrantEnabled(t *testing.T) {
+	enabled := true
+	req := resourceRequest{
+		ResourceCode:        "badge_manager_enabled",
+		ResourceType:        resourceTypeBadge,
+		Name:                "Manager Enabled Badge",
+		Status:              "active",
+		ManagerGrantEnabled: &enabled,
+	}
+
+	proto := req.createProto(newGiftRequestTestContext())
+
+	if proto.ManagerGrantEnabled == nil || !proto.GetManagerGrantEnabled() {
+		t.Fatalf("explicit manager grant enabled should be preserved, got %v", proto.GetManagerGrantEnabled())
+	}
+}
+
 func newGiftRequestTestContext() *gin.Context {
 	gin.SetMode(gin.TestMode)
 	recorder := httptest.NewRecorder()
diff --git a/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql b/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
index 95e27fc0..cb7c5b58 100644
--- a/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
+++ b/services/wallet-service/deploy/mysql/initdb/001_wallet_service.sql
@@ -584,7 +584,7 @@ CREATE TABLE IF NOT EXISTS resources (
   name VARCHAR(128) NOT NULL COMMENT '名称',
   status VARCHAR(32) NOT NULL COMMENT '业务状态',
   grantable BOOLEAN NOT NULL DEFAULT TRUE COMMENT '是否允许发放',
-  manager_grant_enabled BOOLEAN NOT NULL DEFAULT TRUE COMMENT '管理端是否允许发放',
+  manager_grant_enabled BOOLEAN NOT NULL DEFAULT FALSE COMMENT '管理端是否允许发放',
   grant_strategy VARCHAR(32) NOT NULL COMMENT '发放策略',
   wallet_asset_type VARCHAR(32) NOT NULL DEFAULT '' COMMENT '钱包资产类型',
   wallet_asset_amount BIGINT NOT NULL DEFAULT 0 COMMENT '钱包资产数量',
@@ -608,7 +608,7 @@ CREATE TABLE IF NOT EXISTS resources (
 
 SET @ddl := IF(
   (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'resources' AND COLUMN_NAME = 'manager_grant_enabled') = 0,
-  'ALTER TABLE resources ADD COLUMN manager_grant_enabled BOOLEAN NOT NULL DEFAULT TRUE COMMENT ''管理端是否允许发放'' AFTER grantable',
+  'ALTER TABLE resources ADD COLUMN manager_grant_enabled BOOLEAN NOT NULL DEFAULT FALSE COMMENT ''管理端是否允许发放'' AFTER grantable',
   'SELECT 1'
 );
 PREPARE stmt FROM @ddl;
diff --git a/services/wallet-service/internal/transport/grpc/resource.go b/services/wallet-service/internal/transport/grpc/resource.go
index e40d1009..64eec2ff 100644
--- a/services/wallet-service/internal/transport/grpc/resource.go
+++ b/services/wallet-service/internal/transport/grpc/resource.go
@@ -619,8 +619,8 @@ func resourceShopPurchaseReceiptToProto(receipt resourcedomain.ResourceShopPurch
 
 func managerGrantEnabledOrDefault(value *bool) bool {
 	if value == nil {
-		// 新建/编辑入口如果没显式携带开关，仍按产品规则默认允许经理中心赠送。
-		return true
+		// 新建/编辑入口如果没显式携带开关，按产品规则默认关闭经理中心赠送。
+		return false
 	}
 	return *value
 }
diff --git a/services/wallet-service/internal/transport/grpc/resource_test.go b/services/wallet-service/internal/transport/grpc/resource_test.go
new file mode 100644
index 00000000..4e12ac3f
--- /dev/null
+++ b/services/wallet-service/internal/transport/grpc/resource_test.go
@@ -0,0 +1,37 @@
+package grpc
+
+import (
+	"testing"
+
+	walletv1 "hyapp.local/api/proto/wallet/v1"
+)
+
+func TestResourceCommandDefaultsManagerGrantDisabled(t *testing.T) {
+	command := resourceCommandFromCreate(&walletv1.CreateResourceRequest{
+		ResourceCode: "badge_default_manager_disabled",
+		ResourceType: "badge",
+		Name:         "Default Manager Disabled Badge",
+		Status:       "active",
+		Grantable:    true,
+	})
+
+	if command.ManagerGrantEnabled {
+		t.Fatalf("manager grant should default to disabled")
+	}
+}
+
+func TestResourceCommandKeepsExplicitManagerGrantEnabled(t *testing.T) {
+	enabled := true
+	command := resourceCommandFromCreate(&walletv1.CreateResourceRequest{
+		ResourceCode:        "badge_manager_enabled",
+		ResourceType:        "badge",
+		Name:                "Manager Enabled Badge",
+		Status:              "active",
+		Grantable:           true,
+		ManagerGrantEnabled: &enabled,
+	})
+
+	if !command.ManagerGrantEnabled {
+		t.Fatalf("explicit manager grant enabled should be preserved")
+	}
+}