diff --git a/kiri-engine/Pool/Connection.php b/kiri-engine/Pool/Connection.php
index f6692c61..897d7926 100644
--- a/kiri-engine/Pool/Connection.php
+++ b/kiri-engine/Pool/Connection.php
@@ -96,7 +96,11 @@ class Connection extends Component
 	 */
 	public function get(mixed $config, bool $isMaster = false): ?\PDO
 	{
-		return $this->pool->get($config['cds'] . ($isMaster ? 'master' : 'slave'), $this->generate($config));
+		$name = $config['cds'] . ($isMaster ? 'master' : 'slave');
+		if (!$this->pool->hasChannel($name, $config['pool']['max'])) {
+			$this->pool->initConnections($name, $config['pool']['max']);
+		}
+		return $this->pool->get($name, $this->generate($config));
 	}
 
 
diff --git a/kiri-engine/Pool/Pool.php b/kiri-engine/Pool/Pool.php
index 5086a406..4925257a 100644
--- a/kiri-engine/Pool/Pool.php
+++ b/kiri-engine/Pool/Pool.php
@@ -129,7 +129,7 @@ class Pool extends Component
 	public function channel($name): PoolQueue
 	{
 		$channel = static::$_connections[$name] ?? null;
-		if (!($channel instanceof PoolQueue) ) {
+		if (!($channel instanceof PoolQueue)) {
 			throw new Exception('Channel is not exists.');
 		}
 		if ($channel->isClose()) {
@@ -139,6 +139,19 @@ class Pool extends Component
 	}
 
 
+	public function hasChannel($name, $max): bool
+	{
+		$channel = static::$_connections[$name] ?? null;
+		if (!($channel instanceof PoolQueue)) {
+			return false;
+		}
+		if ($channel->isClose()) {
+			return false;
+		}
+		return true;
+	}
+
+
 	/**
 	 * @param $name
 	 * @param $callback