diff --git a/cron.backupdb.sh b/cron.backupdb.sh
new file mode 100644
index 0000000..8fcf952
--- /dev/null
+++ b/cron.backupdb.sh
@@ -0,0 +1,56 @@
+#!/bin/sh
+
+# Add log redirection for all output
+exec 1>>/var/log/cron.backupdb.log 2>&1
+
+# Add timestamp to log entry
+echo "=== Backup started at $(date '+%Y-%m-%d %H:%M:%S') ==="
+
+# Set variables
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+DB_LIST="qvyun postgres" # Replace with your database names
+POSTGRES_DIR="/opt/services/postgres"
+BACKUP_DIR="${POSTGRES_DIR}/data/backups"
+
+# Create backup directory if not exists
+# 如果 BACKUP_DIR 存在则不创建，否则创建
+[ -d $BACKUP_DIR ] || mkdir -p $BACKUP_DIR
+
+# Create temp directory for dumps
+TEMP_DIR="${BACKUP_DIR}/temp_${TIMESTAMP}"
+mkdir -p $TEMP_DIR
+
+# Enhance logging for database backup
+cd $POSTGRES_DIR || {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] Failed to change directory to $POSTGRES_DIR"G
+    exit 1
+}
+
+for DB_NAME in $DB_LIST; do
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] Backing up database: $DB_NAME"
+    docker compose exec -T pg pg_dump -U postgres -w -Fc "$DB_NAME" -f "/var/lib/postgresql/data/backups/temp_${TIMESTAMP}/${DB_NAME}.dump"
+    if [ $? -eq 0 ]; then
+        echo "[$(date '+%Y-%m-%d %H:%M:%S')] Successfully backed up $DB_NAME"
+    else
+        echo "[$(date '+%Y-%m-%d %H:%M:%S')] Error backing up $DB_NAME"
+    fi
+done
+
+# Return to backup directory for zip operation
+cd $BACKUP_DIR || {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] Failed to change directory to $BACKUP_DIR"
+    exit 1
+}
+
+# Create zip archive
+cd $BACKUP_DIR
+zip -r "postgres_backup_${TIMESTAMP}.zip" "temp_${TIMESTAMP}"
+
+# Cleanup temp directory
+rm -rf $TEMP_DIR
+
+# Upload to Aliyun OSS
+rclone sync --update /opt/services/postgres/data/backups/ alioss:/rogee-backups/server/ali/bj01/backups
+
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] Backup completed: postgres_backup_${TIMESTAMP}.zip"
+echo "=== Backup finished at $(date '+%Y-%m-%d %H:%M:%S') ==="
diff --git a/docker-compose.backend.yaml b/docker-compose.backend.yaml
index f667a01..5b90442 100644
--- a/docker-compose.backend.yaml
+++ b/docker-compose.backend.yaml
@@ -8,3 +8,6 @@ services:
       - /data:/app/processed
     ports:
       - 9600:9600
+    logging:
+      options:
+        max-size: "100m"