The invention discloses a bag-breaking, cleaning and throwing garbage can for wet garbage and a using method, and aims to solve the problems that sealing cannot be achieved in the wet garbage throwing process, and the throwing process is affected by odor diffusion of wet garbage in a can in the prior art. The garbage can comprises a can body and a garbage can, an intelligent weighing module is arranged at the bottom of the can body, the garbage can is located on the intelligent weighing module, and a throwing opening and a user information recognition module are arranged in front of the can body. A wet garbage throwing device, an odor monitoring early warning and atomization spraying deodorization module and a main controller are arranged in the can body, an access hole is formed in the rear face of the can body, and the wet garbage throwing device is located above the garbage can. According to the method, bag-breaking, cleaning and throwing of wet garbage can be achieved, it is guaranteed that odor in the can is isolated, garbage in the can is blocked, and leakage of percolate is avoided. The process is clean and convenient, the weight and height of garbage in the garbage can can be monitored in real time, the functions of intelligent odor monitoring and early warning and atomization spraying deodorization are achieved, the odor of wet garbage in the garbage can can be intelligently monitored, intelligent spraying is achieved, and cleaning and energy saving are achieved.