diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index 5a238ce0c..64e86ca21 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -318,6 +318,12 @@ func InitConf() {
 	if nil == Conf.Flashcard {
 		Conf.Flashcard = conf.NewFlashcard()
 	}
+	if 1 > Conf.Flashcard.DailyNewCardLimit {
+		Conf.Flashcard.DailyNewCardLimit = 20
+	}
+	if 1 > Conf.Flashcard.DailyReviewCardLimit {
+		Conf.Flashcard.DailyReviewCardLimit = 200
+	}
 
 	if nil == Conf.AI {
 		Conf.AI = conf.NewAI()