The utility model relates to a lock for a door panel of a cabinet.The lock for the door panel of the cabinet comprises a door, and is characterized in that lock rods are mounted at the upper and lower parts on the front edge of the door; the top ends of the lovk rods are positioned at the upper end and the lower end of the door; the top ends of the lock rods are connected into an L-shaped piece; a nylon roller is mounted at the top end of the L-shaped piece; and lock rod fastening pieces are connected to the lock rods. The utility model has the advantages that the lock rods are fastened firmly, and the anti-theft function is strong in an upper and lower multi-point fixation manner; the upper and lower nylon rollers are connected with the cabinet, and the contact surface of the nylon rollers and the cabinet is small, the coating on the surface of the cabinet can not be damaged and scratched; and the cabinet is more attractive and reliable.