The invention discloses an intelligent garbage putting box with a bag breaking function and a use method. The garbage putting box comprises a box body, a putting opening, an automatic separation device mounted in the box body and corresponding to the putting opening, a garbage collection barrel, a garbage bag collection barrel, an overflow alarm system, a disinfection deodorization system and a master control system, wherein the garbage collection barrel, the garbage bag collection barrel, the overflow alarm system, the disinfection deodorization system and the master control system are located in the box body, the automatic separation device, the overflow alarm system and the disinfection deodorization system are connected with the master control system, the automatic separation device isused for automatically separating garbage bags and garbage, the overflow alarm system gives an alarm if overflow appears, due to the putting opening, garbage put is facilitated, putting data of a user can be traced, automatic bag breaking is carried out, operation of user putting and manually tearing the garbage bags and drip leaking in the process of abandoning the garbage bags can be reduced, the process is more clean and convenient, the garbage bags and the garbage can be automatically separated, a drip leaking prevention structure is arranged, meanwhile, odor overflowing can be prevented,the alarm is given out if overflow happens, the disinfection deodorization system is arranged, and garbage odor in the barrel can be controlled.