diff --git a/mindspore/ccsrc/common/duplex_pipe.cc b/mindspore/ccsrc/common/duplex_pipe.cc
index c2f53d574c..c537591cde 100644
--- a/mindspore/ccsrc/common/duplex_pipe.cc
+++ b/mindspore/ccsrc/common/duplex_pipe.cc
@@ -152,7 +152,7 @@ void DuplexPipe::Close() {
 DuplexPipe::SignalHandler::SignalHandler(std::shared_ptr<DuplexPipe> dp, pid_t pid) {
   dp_ = dp;
   child_pid_ = pid;
-  signal(SIGCHLD, SIG_IGN);
+  signal(SIGCHLD, SigChildHandler);
   signal(SIGPIPE, SigPipeHandler);
 }
 
@@ -178,4 +178,9 @@ void DuplexPipe::SignalHandler::SigPipeHandler(int sig) {
     dp_->NotifyFinalize();
   }
 }
+
+void DuplexPipe::SignalHandler::SigChildHandler(int sig) {
+  int status;
+  (void)waitpid(child_pid_, &status, WNOHANG | WUNTRACED);
+}
 }  // namespace mindspore
diff --git a/mindspore/ccsrc/common/duplex_pipe.h b/mindspore/ccsrc/common/duplex_pipe.h
index d99c2906ea..fe069f8dd7 100644
--- a/mindspore/ccsrc/common/duplex_pipe.h
+++ b/mindspore/ccsrc/common/duplex_pipe.h
@@ -118,6 +118,7 @@ class DuplexPipe : public std::enable_shared_from_this<mindspore::DuplexPipe> {
    private:
     static void SigAlarmHandler(int sig);
     static void SigPipeHandler(int sig);
+    static void SigChildHandler(int sig);
 
     inline static std::shared_ptr<DuplexPipe> dp_;
     inline static pid_t child_pid_;