diff --git a/Src/Core/Process/ProcessAbstract.php b/Src/Core/Process/ProcessAbstract.php
index d899bf6d..33f7db98 100644
--- a/Src/Core/Process/ProcessAbstract.php
+++ b/Src/Core/Process/ProcessAbstract.php
@@ -103,6 +103,12 @@ public function onStart() {
 		$this->beforeStart();
 
 		$this->channel = new Coroutine\Channel(1);
+
+		$this->listen();
+		$this->start();
+	}
+
+	private function listen() {
 		Coroutine::create(function () {
 			/**
 			 * @var Coroutine\Socket $socket
@@ -129,47 +135,58 @@ public function onStart() {
 			}
 			$this->channel->close();
 		});
+	}
 
+	private function start() {
 		if (method_exists($this, 'read')) {
-			$this->startByEvent();
+			$pipe = $this->pipe ? $this->pipe : $this->process->pipe;
+			Event::add($pipe, function () {
+				$this->doRun(function () {
+					$data = $this->pipe ? '' : $this->process->read();
+					if (!$this->read($data)) {
+						Event::del($this->pipe ? $this->pipe : $this->process->pipe);
+					}
+				});
+			});
 		} else {
-			$this->startByTimer();
-		}
-	}
-
-	private function startByTimer() {
-		$this->doRun(function () {
-			$this->run($this->process);
-		});
-	}
-
-	private function startByEvent() {
-		$pipe = $this->pipe ? $this->pipe : $this->process->pipe;
-		Event::add($pipe, function () {
 			$this->doRun(function () {
-				$data = $this->pipe ? '' : $this->process->read();
-				if (!$this->read($data)) {
-					Event::del($this->pipe ? $this->pipe : $this->process->pipe);
-				}
+				$this->run($this->process);
 			});
-		});
+		}
 	}
 
 	private function doRun(\Closure $callback) {
 		try {
 			$callback();
+			$this->stopProcessIfNecessary();
 		} catch (\Throwable $throwable) {
 			if ((ENV & DEBUG) == DEBUG) {
 				(new Output())->error($throwable->getMessage() . ' at file ' . $throwable->getFile() . ' line ' . $throwable->getLine());
 			}
 			$this->getContainer()->singleton(HandlerExceptions::class)->getHandler()->report($throwable);
 
-			$this->channel->push(true);
-			Timer::clearAll();
-			$this->getProcess()->exit();
+			$this->stop();
 		}
 	}
 
+	private function stopProcessIfNecessary() {
+		$timerNum = 0;
+		foreach (Timer::list() as $item) {
+			++$timerNum;
+		}
+		if ($timerNum == 0) {
+			$this->stop();
+		}
+	}
+
+	private function stop() {
+		$this->getLogger()->debug('process ' . $this->getProcessName() . ' exit');
+
+		$this->channel->push(true);
+		Timer::clearAll();
+		$this->getProcess()->exit();
+	}
+
 	abstract protected function run(Process $process);
 
 	/**
@@ -192,8 +209,4 @@ public function sendMsg($msg) {
 	public function readMsg($size = null) {
 		return $this->getProcess()->pop($size);
 	}
-
-	public function onStop() {
-		$this->getLogger()->debug('process ' . $this->getProcessName() . ' exit');
-	}
 }