diff --git a/jetlinks-manager/device-manager/src/main/java/org/jetlinks/community/device/web/ProtocolSupportController.java b/jetlinks-manager/device-manager/src/main/java/org/jetlinks/community/device/web/ProtocolSupportController.java
index 28fb8d2eb..52d7a6146 100644
--- a/jetlinks-manager/device-manager/src/main/java/org/jetlinks/community/device/web/ProtocolSupportController.java
+++ b/jetlinks-manager/device-manager/src/main/java/org/jetlinks/community/device/web/ProtocolSupportController.java
@@ -202,7 +202,8 @@ public Mono<ProtocolDetail> protocolDetail(@PathVariable String id) {
     }
 
     @PostMapping("/convert")
-    @QueryAction
+    // 转换过程会下载并加载协议包，必须使用写权限而不是普通查询权限。
+    @SaveAction
     @Hidden
     public Mono<ProtocolDetail> convertToDetail(@RequestParam(required = false) String transport, @RequestBody Mono<ProtocolSupportEntity> entity) {
         return entity.map(ProtocolSupportEntity::toDeployDefinition)
diff --git a/jetlinks-manager/device-manager/src/test/java/org/jetlinks/community/device/web/ProtocolSupportControllerTest.java b/jetlinks-manager/device-manager/src/test/java/org/jetlinks/community/device/web/ProtocolSupportControllerTest.java
new file mode 100644
index 000000000..ad7789abf
--- /dev/null
+++ b/jetlinks-manager/device-manager/src/test/java/org/jetlinks/community/device/web/ProtocolSupportControllerTest.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2026 JetLinks https://www.jetlinks.cn
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jetlinks.community.device.web;
+
+import org.hswebframework.web.authorization.annotation.QueryAction;
+import org.hswebframework.web.authorization.annotation.SaveAction;
+import org.junit.jupiter.api.Test;
+import reactor.core.publisher.Mono;
+
+import java.lang.reflect.Method;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class ProtocolSupportControllerTest {
+
+    @Test
+    void convertShouldRequireSavePermission() throws NoSuchMethodException {
+        Method method = ProtocolSupportController.class
+            .getDeclaredMethod("convertToDetail", String.class, Mono.class);
+
+        assertTrue(method.isAnnotationPresent(SaveAction.class));
+        assertFalse(method.isAnnotationPresent(QueryAction.class));
+    }
+}