diff --git a/devfront/src/features/clients/ClientDetailsPage.tsx b/devfront/src/features/clients/ClientDetailsPage.tsx
index fe20da69..ec445828 100644
--- a/devfront/src/features/clients/ClientDetailsPage.tsx
+++ b/devfront/src/features/clients/ClientDetailsPage.tsx
@@ -1,7 +1,7 @@
 import React, { useState, useEffect } from "react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import type { AxiosError } from "axios";
-import { AlertCircle, Copy, Eye, EyeOff, Link2, Shield, Workflow, Save } from "lucide-react";
+import { AlertCircle, Copy, Eye, EyeOff, Link2, Shield, Workflow, Save, RefreshCw } from "lucide-react";
 import { Link, useParams } from "react-router-dom";
 import { Badge } from "../../components/ui/badge";
 import { Button } from "../../components/ui/button";
@@ -15,7 +15,7 @@ import {
 } from "../../components/ui/table";
 import { Textarea } from "../../components/ui/textarea";
 import { Label } from "../../components/ui/label";
-import { fetchClient, updateClient } from "../../lib/devApi";
+import { fetchClient, updateClient, rotateClientSecret } from "../../lib/devApi";
 import { cn } from "../../lib/utils";
 import { CopyButton } from "../../components/ui/copy-button";
 import { toast } from "../../components/ui/use-toast";
@@ -57,6 +57,24 @@ function ClientDetailsPage() {
     },
   });
 
+  const rotateMutation = useMutation({
+    mutationFn: () => rotateClientSecret(clientId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["client", clientId] });
+      toast("Client Secret이 재발급되었습니다.");
+      setShowSecret(true); // 재발급 후 바로 보여줌
+    },
+    onError: (err) => {
+      toast(`재발급 실패: ${(err as Error).message}`, "error");
+    },
+  });
+
+  const handleRotateSecret = () => {
+    if (window.confirm("경고: Client Secret을 재발급하면 기존 시크릿은 즉시 무효화됩니다.\n연동된 애플리케이션이 중단될 수 있습니다. 계속하시겠습니까?")) {
+      rotateMutation.mutate();
+    }
+  };
+
   if (!clientId) {
     return <div className="p-8 text-center">Client ID가 필요합니다.</div>;
   }
@@ -176,14 +194,20 @@ function ClientDetailsPage() {
                       >
                         {showSecret ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
                       </Button>
+                      <Button
+                        variant="secondary"
+                        size="icon"
+                        onClick={handleRotateSecret}
+                        disabled={rotateMutation.isPending}
+                        title="비밀키 재발급 (Rotate)"
+                      >
+                        <RefreshCw className={cn("h-4 w-4", rotateMutation.isPending && "animate-spin")} />
+                      </Button>
                       <CopyButton 
                         value={clientSecret}
                         disabled={!showSecret && clientSecret === "SECRET_NOT_AVAILABLE"}
                         onCopy={() => toast("Client Secret이 복사되었습니다.")}
                       />
-                      <Button variant="outline" size="icon" className="border-amber-500/50 text-amber-500">
-                        <AlertCircle className="h-4 w-4" />
-                      </Button>
                     </div>
                   </div>
                 </div>
diff --git a/devfront/src/lib/devApi.ts b/devfront/src/lib/devApi.ts
index f16220aa..9043bdbf 100644
--- a/devfront/src/lib/devApi.ts
+++ b/devfront/src/lib/devApi.ts
@@ -136,6 +136,13 @@ export async function updateClient(
   return data;
 }
 
+export async function rotateClientSecret(clientId: string) {
+  const { data } = await apiClient.post<ClientDetailResponse>(
+    `/dev/clients/${clientId}/secret/rotate`
+  );
+  return data;
+}
+
 export async function deleteClient(clientId: string) {
   await apiClient.delete(`/dev/clients/${clientId}`);
 }