The utility model relates to a tool to lock field, in particular to novel tool to lock for burglary -resisting door. Mainly organize, go up spring bolt, big screw, little screw, lock core, lock body, door handle, key punch combination one -tenth by door plant, protection shield, lower spring bolt, the protection shield through big fix with screw on the side of door plant, the last spring bolt the first half of passing the protection shield link to each other with the door plant, the lower spring bolt group the latter half of passing the protection shield link to each other with the door plant, the lock body through little fix with screw on the door plant, the first half processing of lock body have the lock core, the lock core on processing have a key hole, the latter half of lock body install the door handle. Beneficial effect: simple structure, maneuverability is stronger, adopts the lock core of V type structure, has solved the darkness or when drunk, the not difficult to find problem in key hole of burglary -resisting door.