diff --git a/dashboard/src/views/extension/useExtensionPage.js b/dashboard/src/views/extension/useExtensionPage.js
index 8b9c2ced7e..994be0814b 100644
--- a/dashboard/src/views/extension/useExtensionPage.js
+++ b/dashboard/src/views/extension/useExtensionPage.js
@@ -1288,7 +1288,7 @@ export const useExtensionPage = () => {
   const checkAlreadyInstalled = () => {
     const data = Array.isArray(extension_data?.data) ? extension_data.data : [];
     const installedRepos = new Set(data.map((ext) => ext.repo?.toLowerCase()));
-    const installedNames = new Set(data.map((ext) => ext.name));
+    const installedNames = new Set(data.map((ext) => normalizeStr(ext.name).replace(/_/g, '-')));//统一格式，以防下面的匹配不生效
     const installedByRepo = new Map(
       data
         .filter((ext) => ext.repo)
@@ -1315,10 +1315,10 @@ export const useExtensionPage = () => {
           plugin.astrbot_version = matchedInstalled.astrbot_version;
         }
       }
-  
+      
       plugin.installed =
         installedRepos.has(plugin.repo?.toLowerCase()) ||
-        installedNames.has(plugin.name);
+        installedNames.has(normalizeStr(plugin.name).replace(/_/g, '-'));//统一格式，防止匹配失败
     }
   
     let installed = [];