Trick type domestic theft-proof alarming door lock

The utility model relates to a cipher type domestic theft-proof alarming door lock, which is composed of a plurality of layers of cipher rotary tables, a lock core, a locking head provided with a movable plug, and an alarm, wherein, the lock core comprises a lock core body, a rotary ring provided with a gap, a rotary shaft provided with a wedge-shaped groove, a spacer pin arranged in the wedge-shaped groove and matched with the gap by a convex tooth, and a contact switch connected with the alarm. The door lock adopts the cipher rotary tables to drive the rotary ring, and controls the rotary shaft to control the on-off of the locking head by the spacer pin. The utility model has the advantages of no lock hole, ten thousands of encoding amount, good safety performance, alarm function, reasonable structure, convenient operation and strong practicability.