diff --git a/WebContent/jsp/common/scheduler/schedulerManDetail.jsp b/WebContent/jsp/common/scheduler/schedulerManDetail.jsp
index 82cca5b..2d66856 100644
--- a/WebContent/jsp/common/scheduler/schedulerManDetail.jsp
+++ b/WebContent/jsp/common/scheduler/schedulerManDetail.jsp
@@ -68,7 +68,13 @@ function isValidGrid(){
 		    return false;
 		}
 	}
-	
+
+	//데이터 KEY 개수 제한 (500개)
+	if (data.length >= 500){
+		alert("<%= localeMessage.getString("scheduler.checkRequired6") %>");
+		return false;
+	}
+
 	return true;
 }
 
diff --git a/src/main/resources/message/LocaleMessage_en.properties b/src/main/resources/message/LocaleMessage_en.properties
index 3a3702d..ba75f27 100644
--- a/src/main/resources/message/LocaleMessage_en.properties
+++ b/src/main/resources/message/LocaleMessage_en.properties
@@ -1648,6 +1648,7 @@ scheduler.checkRequired2 = Please enter the JOB class name.
 scheduler.checkRequired3 = Please enter the data key.
 scheduler.checkRequired4 = Please enter the data value.
 scheduler.checkRequired5 = Duplicate data key present. Please check.
+scheduler.checkRequired6 = You cannot register more than 500 data keys.
 scheduler.class          = JOB Class
 scheduler.cron           = CRON expression
 scheduler.cronDesc       = *:all, /:increment( from A to every B A/B )
diff --git a/src/main/resources/message/LocaleMessage_ko.properties b/src/main/resources/message/LocaleMessage_ko.properties
index 0ae0545..e969ba5 100644
--- a/src/main/resources/message/LocaleMessage_ko.properties
+++ b/src/main/resources/message/LocaleMessage_ko.properties
@@ -1745,6 +1745,7 @@ scheduler.checkRequired2 = JOB\uD074\uB798\uC2A4\uBA85\uC744 \uC785\uB825\uD558\
 scheduler.checkRequired3 = \uB370\uC774\uD0C0 KEY\uB97C \uC785\uB825\uD558\uC5EC \uC8FC\uC2ED\uC2DC\uC694.
 scheduler.checkRequired4 = \uB370\uC774\uD0C0 VALUE\uB97C \uC785\uB825\uD558\uC5EC \uC8FC\uC2ED\uC2DC\uC694.
 scheduler.checkRequired5 = \uC911\uBCF5\uB41C \uB370\uC774\uD0C0KEY\uAC00 \uC874\uC7AC\uD569\uB2C8\uB2E4. \uD655\uC778\uD558\uC5EC\uC8FC\uC2ED\uC2DC\uC694.
+scheduler.checkRequired6 = \uB370\uC774\uD130 KEY\uB294 500\uAC1C\uAE4C\uC9C0\uB9CC \uB4F1\uB85D\uD560 \uC218 \uC788\uC2B5\uB2C8\uB2E4.
 scheduler.class          = JOB\uD074\uB798\uC2A4\uBA85
 scheduler.cron           = CRON\uD45C\uD604\uC2DD
 scheduler.cronDesc       = *:\uBAA8\uB4E0\uAC12, /:\uC99D\uBD84(A\uBD80\uD130 \uB9E4 B\uB9C8\uB2E4 A/B)