diff --git a/common/init.go b/common/init.go
index 1e9c85c..81c62bb 100644
--- a/common/init.go
+++ b/common/init.go
@@ -36,7 +36,14 @@ func init() {
 	}
 
 	if os.Getenv("SESSION_SECRET") != "" {
-		SessionSecret = os.Getenv("SESSION_SECRET")
+		ss := os.Getenv("SESSION_SECRET")
+		if ss == "random_string" {
+			log.Println("WARNING: SESSION_SECRET is set to the default value 'random_string', please change it to a random string.")
+			log.Println("警告：SESSION_SECRET被设置为默认值'random_string'，请修改为随机字符串。")
+			log.Fatal("Please set SESSION_SECRET to a random string.")
+		} else {
+			SessionSecret = ss
+		}
 	}
 	if os.Getenv("SQLITE_PATH") != "" {
 		SQLitePath = os.Getenv("SQLITE_PATH")