diff --git a/src/framework/jinux-frame/src/user.rs b/src/framework/jinux-frame/src/user.rs
index 0db74687c..6bdc7dbdd 100644
--- a/src/framework/jinux-frame/src/user.rs
+++ b/src/framework/jinux-frame/src/user.rs
@@ -179,5 +179,4 @@ impl<'a> UserMode<'a> {
 pub enum UserEvent {
     Syscall,
     Exception,
-    Fault,
 }
diff --git a/src/services/libs/jinux-std/src/thread/task.rs b/src/services/libs/jinux-std/src/thread/task.rs
index ff649b868..0358ce085 100644
--- a/src/services/libs/jinux-std/src/thread/task.rs
+++ b/src/services/libs/jinux-std/src/thread/task.rs
@@ -56,7 +56,6 @@ pub fn create_new_user_task(user_space: Arc<UserSpace>, thread_ref: Weak<Thread>
 fn handle_user_event(user_event: UserEvent, context: &mut UserContext) {
     match user_event {
         UserEvent::Syscall => handle_syscall(context),
-        UserEvent::Fault => todo!(),
         UserEvent::Exception => handle_exception(context),
     }
 }