diff --git a/back/config/util.ts b/back/config/util.ts
index f057d7ed..2282a6ac 100644
--- a/back/config/util.ts
+++ b/back/config/util.ts
@@ -468,10 +468,11 @@ export function psTree(pid: number): Promise<number[]> {
 
 export async function killTask(pid: number) {
   const pids = await psTree(pid);
+  // SIGALRM 14 时钟信号
   if (pids.length) {
-    process.kill(pids[0], 2);
+    process.kill(pids[0], 14);
   } else {
-    process.kill(pid, 2);
+    process.kill(pid, 14);
   }
 }
 
diff --git a/shell/otask.sh b/shell/otask.sh
index 93512936..44a08ee1 100644
--- a/shell/otask.sh
+++ b/shell/otask.sh
@@ -5,7 +5,7 @@ dir_shell=$QL_DIR/shell
 . $dir_shell/share.sh
 . $dir_shell/api.sh
 
-trap "single_hanle" 2 20 15
+trap "single_hanle" 2 20 15 14
 single_hanle() {
   handle_task_after "$@"
   exit 1
diff --git a/shell/task.sh b/shell/task.sh
index 1051416c..aa853843 100755
--- a/shell/task.sh
+++ b/shell/task.sh
@@ -56,7 +56,7 @@ format_params() {
   time_format="%Y-%m-%d %H:%M:%S"
   timeoutCmd=""
   if type timeout &>/dev/null; then
-    timeoutCmd="timeout --foreground -s 2 -k 10s $command_timeout_time "
+    timeoutCmd="timeout --foreground -s 14 -k 10s $command_timeout_time "
   fi
   params=$(echo "$@" | sed -E 's/([^ ])&([^ ])/\1\\\&\2/g')
 }