The invention relates to an anti-theft device, in particular to a refrigerator anti-theft frame. The refrigerator anti-theft frame is composed of a support and a lock catch frame, wherein the support consists of a cross beam and a vertical beam which are intersected, and the support is connected with the lock catch frame through a bolt pin. The support is composed of the tubular cross beam and the vertical beam which are embedded and inserted with each other. A locking bolt is attached to the lock catch frame and matched with a locking hole in the support. The anti-theft device is simple and ingenious in structural design and very convenient to use, and the burglary prevention of a refrigerator can be greatly enhanced.