Machine-light integrated lock, key and lock key

The invention discloses a machine-light integrated lock, a key and a lock key, and belongs to the technical field of intelligent locks. The lock key comprises the key and the lock, and a key end comprises an insection and a first photo-communication unit, wherein the first photo-communication unit comprises a first transmission module and a first processing module; a lock end comprises a lock cylinder and a second photo-communication unit, the second photo-communication unit comprises a second transmission module, a second control module and a second processing module. According to the machine-light integrated lock, the key and the lock key, the advantages of high photo-communication rate and high capacity of a memory chip are adopted, on the basis of an existing mechanical key, photosignal key verification is added, thereby improving the magnitude of the number of verification keys, therefore, the safety performance of a door lock is greatly improved, and the problems of insufficientsafety and higher cost in