diff --git a/src/components/TaskForm.tsx b/src/components/TaskForm.tsx
index f99fbc0..1bc5933 100644
--- a/src/components/TaskForm.tsx
+++ b/src/components/TaskForm.tsx
@@ -13,11 +13,12 @@ const TaskForm: React.FC<TaskFormProps> = ({ task, onTaskChange }) => {
     field: string,
     value: string | number | RobotAction,
   ) => {
-    const currentParam = task.parameters[field] || {};
+    const parameters = task.parameters || {};
+    const currentParam = parameters[field] || {};
     const updatedTask = {
       ...task,
       parameters: {
-        ...task.parameters,
+        ...parameters,
         [field]: {
           ...currentParam,
           value: value,
diff --git a/src/screens/TaskEditScreen.tsx b/src/screens/TaskEditScreen.tsx
index b230829..410691b 100644
--- a/src/screens/TaskEditScreen.tsx
+++ b/src/screens/TaskEditScreen.tsx
@@ -76,7 +76,7 @@ export default function TaskEditScreen() {
       updateTask(task);
       setOriginalTask(task);
       setIsModified(false);
-      Alert.alert('已保存', `任务 "${task.name}" 已被保存。`);
+      Alert.alert('已保存', `任务 "${task.label}" 已被保存。`);
     }
   };