diff --git a/src/utils/permission.ts b/src/utils/permission.ts
index 4324d98..fcba349 100644
--- a/src/utils/permission.ts
+++ b/src/utils/permission.ts
@@ -66,6 +66,21 @@ export function hasAnyRole(value: string | string[]): boolean {
   return arrayHasAny(userStore?.roles, value);
 }
 
+/** 学生角色标识 */
+export const STUDENT_ROLE_CODE = 'student';
+
+/**
+ * 是否仅为学生身份（角色恰好只有 student）
+ *
+ * 与后端 BaseController#hasOnlyStudentRole 保持一致：拥有任意其他角色
+ * （学生干部、教师、管理员等）即视为非纯学生，不在此列。
+ */
+export function isOnlyStudent(): boolean {
+  const userStore = useUserStore();
+  const roles = (userStore?.roles ?? []).filter((d) => !!d);
+  return roles.length === 1 && roles[0] === STUDENT_ROLE_CODE;
+}
+
 /**
  * 是否有某些权限
  * @param value 权限字符或字符数组
diff --git a/src/views/oa/chatgpt/index.vue b/src/views/oa/chatgpt/index.vue
index c9f5efa..e0e1786 100644
--- a/src/views/oa/chatgpt/index.vue
+++ b/src/views/oa/chatgpt/index.vue
@@ -79,7 +79,11 @@
             <div class="sidebar-footer">
                 <p class="user-name">{{ userName }}</p>
                 <div class="footer-actions">
-                    <button class="admin-btn" type="button" @click="goAdmin"
+                    <button
+                        v-if="showAdminEntry"
+                        class="admin-btn"
+                        type="button"
+                        @click="goAdmin"
                     >进入后台
                     </button
                     >
@@ -319,6 +323,7 @@ import { useUserStore } from "@/store/modules/user";
 import { logout } from "@/utils/page-tab-util";
 import { copyText } from "@/utils/common";
 import { getToken } from "@/utils/token-util";
+import { isOnlyStudent } from "@/utils/permission";
 
 type ChatRole = "user" | "assistant";
 type ChatMode = "chat" | "writing" | "image";
@@ -377,6 +382,11 @@ const userName = computed(
         (loginUser.value.userId ? `用户${loginUser.value.userId}` : "未登录")
 );
 
+/**
+ * 是否展示「进入后台」入口：纯学生身份隐藏
+ */
+const showAdminEntry = computed(() => !isOnlyStudent());
+
 const canSend = computed(
     () => content.value.trim().length > 0 && !loading.value
 );