diff --git a/src/web/server/player/login.php b/src/web/server/player/login.php
index 19dc831..1500f9e 100644
--- a/src/web/server/player/login.php
+++ b/src/web/server/player/login.php
@@ -40,6 +40,14 @@ if($activateStatus == 0) {
 	exit;
 }
 
+$date = new DateTime($maestroInfo["availableActivateDateTime"]);
+$now = new DateTime();
+if($maestroInfo["activateStatus"] === 1 && $date < $now) {
+	set_error_message("마에스트로 계정의 유효기간이 지났습니다.\n(만료일 : ".$date->format("Y-m-d").")\n선생님께 문의하세요.");
+	send_result_fail();
+	exit;
+}
+
 $playerInfo = get_login_data($maestroID, $name, $enterCode);
 if($playerInfo === NULL) {
 	set_error_message("입력한 이름 / 입장번호와 일치하는 계정이 없습니다.");
@@ -65,14 +73,14 @@ function get_maestro_id($maestroName) {
 	global $db_conn;
 
 	$query = "
-		SELECT MaestroID, AccountType, ActivateStatus
+		SELECT MaestroID, AccountType, ActivateStatus, AvailableActivateDateTime
 		FROM maestro
 		WHERE Name = ?
 	";
 	$stmt = $db_conn->prepare($query);
 	$stmt->bind_param('s', $maestroName);
 	$stmt->execute();
-	$stmt->bind_result($maestroID, $accountType, $activateStatus);
+	$stmt->bind_result($maestroID, $accountType, $activateStatus, $availableActivateDateTime);
 	$returnValue = $stmt->fetch();
 	$stmt->close();
 
@@ -82,6 +90,7 @@ function get_maestro_id($maestroName) {
 	$result["maestroID"] = $maestroID;
 	$result["accountType"] = $accountType;
 	$result["activateStatus"] = $activateStatus;
+	$result["availableActivateDateTime"] = $availableActivateDateTime;
 	return $result;
 }