diff --git a/modules/ncenterlite/ncenterlite.controller.php b/modules/ncenterlite/ncenterlite.controller.php
index 74c31b733..abb77d4ff 100644
--- a/modules/ncenterlite/ncenterlite.controller.php
+++ b/modules/ncenterlite/ncenterlite.controller.php
@@ -872,18 +872,8 @@ class ncenterliteController extends ncenterlite
 		{
 			return;
 		}
-
-		$notify_list = ncenterliteModel::getInstance()->getNotifyMemberSrlBySrl($obj->comment_srl);
-
-		// 대댓글의 대댓글일 경우 혹은 중복적으로 받는 경우 comment_srl 당 2개이상 notify가 생성될 수 있다.
-		$member_srls = array();
-		foreach($notify_list as $value)
-		{
-			if(!in_array($value->member_srl, $member_srls))
-			{
-				$member_srls[] = $value->member_srl;
-			}
-		}
+		
+		$member_srls = ncenterliteModel::getInstance()->getNotifyMemberSrlBySrl($obj->comment_srl);
 
 		$args = new stdClass();
 		$args->srl = $obj->comment_srl;
@@ -905,26 +895,11 @@ class ncenterliteController extends ncenterlite
 			return;
 		}
 		
-		$notify_list = ncenterliteModel::getInstance()->getNotifyMemberSrlBySrl($obj->document_srl);
-		
-		// 대댓글의 대댓글일 경우 혹은 중복적으로 받는 경우 comment_srl 당 2개이상 notify가 생성될 수 있다.
-		$member_srls = array();
-		foreach($notify_list as $value)
-		{
-			if(!in_array($value->member_srl, $member_srls))
-			{
-				$member_srls[] = $value->member_srl;
-			}
-		}
-		
+		$member_srls = ncenterliteModel::getInstance()->getNotifyMemberSrlBySrl($obj->document_srl);
+
 		$args = new stdClass();
 		$args->srl = $obj->document_srl;
 		$output = executeQuery('ncenterlite.deleteNotifyBySrl', $args);
-		if(!$output->toBool())
-		{
-			return $output;
-		}
-		
 		if($output->toBool())
 		{
 			foreach($member_srls as $member_srl)
diff --git a/modules/ncenterlite/ncenterlite.model.php b/modules/ncenterlite/ncenterlite.model.php
index ea457be21..4a4c14d81 100644
--- a/modules/ncenterlite/ncenterlite.model.php
+++ b/modules/ncenterlite/ncenterlite.model.php
@@ -754,22 +754,33 @@ class ncenterliteModel extends ncenterlite
 
 		return $output->data;
 	}
-
-	function getNotifyMemberSrlBySrl($comment_srl)
+	
+	/**
+	 * 알림에서 member_srl 만 정리해서 보내준다.
+	 * @param int $srl
+	 * @return array
+	 */
+	function getNotifyMemberSrlBySrl(int $srl) : array
 	{
-		if(!$comment_srl === null)
+		if(!$srl)
 		{
-			return false;
+			return [];
 		}
 		$args = new stdClass();
-		$args->srl = $comment_srl;
+		$args->srl = $srl;
 		$output = executeQueryArray('ncenterlite.getNotifyMemberSrlBySrl', $args);
 		if(!$output->toBool())
 		{
-			return $output;
+			return [];
+		}
+		
+		$member_srls = array();
+		foreach($output->data ?? [] as $value)
+		{
+			$member_srls[] = $value->member_srl;
 		}
 
-		return $output->data;
+		return $member_srls;
 	}
 
 	function getUserUnsubscribeConfigByUnsubscribeSrl($unsubscribe_srl = 0)
diff --git a/modules/ncenterlite/queries/getNotifyMemberSrlBySrl.xml b/modules/ncenterlite/queries/getNotifyMemberSrlBySrl.xml
index 7e2727799..95662dea6 100644
--- a/modules/ncenterlite/queries/getNotifyMemberSrlBySrl.xml
+++ b/modules/ncenterlite/queries/getNotifyMemberSrlBySrl.xml
@@ -9,4 +9,7 @@
 		<condition operation="equal" column="srl" var="srl" filter="number" notnull="notnull" />
 		<condition operation="equal" column="target_srl" var="srl" filter="number" notnull="notnull" pipe="or" />
 	</conditions>
+	<groups>
+		<group column="member_srl" />
+	</groups>
 </query>