diff --git a/apps/src/views/system/region-config.vue b/apps/src/views/system/region-config.vue
index c13cd27..8ffaf40 100644
--- a/apps/src/views/system/region-config.vue
+++ b/apps/src/views/system/region-config.vue
@@ -547,13 +547,17 @@ async function loadImGroupList() {
       listVoiceRoomRegionImGroups({ sysOrigin: imGroupQuery.sysOrigin }),
     ]);
     const groupMap = new Map(
-      (groups || []).map((item) => [String(item.regionCode || ''), item]),
+      (groups || []).map((item) => [
+        normalizeRegionCodeKey(item.regionCode),
+        item,
+      ]),
     );
     const seen = new Set<string>();
     const rows: Array<Record<string, any>> = (regions || []).map((region) => {
       const regionCode = String(region.regionCode || '');
-      const group = groupMap.get(regionCode) || {};
-      seen.add(regionCode);
+      const regionKey = normalizeRegionCodeKey(regionCode);
+      const group = groupMap.get(regionKey) || {};
+      seen.add(regionKey);
       return {
         ...region,
         configured: Boolean(group.configured),
@@ -566,7 +570,8 @@ async function loadImGroupList() {
     });
     for (const group of groups || []) {
       const regionCode = String(group.regionCode || '');
-      if (seen.has(regionCode)) {
+      const regionKey = normalizeRegionCodeKey(regionCode);
+      if (seen.has(regionKey)) {
         continue;
       }
       rows.push({
@@ -587,6 +592,10 @@ async function loadImGroupList() {
   }
 }
 
+function normalizeRegionCodeKey(value: unknown) {
+  return String(value ?? '').trim().toUpperCase();
+}
+
 async function loadCountryOptions() {
   countries.value = (await getCountryAlls()) || [];
 }