The invention relates to a classification garbage can based on an LD3320 voice recognition chip. The classification garbage can comprises a wireless transmission module, a transceiver, a garbage can, a voice recognition module, an ultrasonic ranging module and a control system. The garbage can comprises a can body, a can cover, a swing arm and a rotating mechanism. The rotating mechanism comprises a base, a reduction gear set, a driving motor and a driving circuit. The voice recognition module comprises a sound pickup and an LD3320 voice recognition chip, receives analog voice information, converts the analog voice information into digital voice information, recognizes keywords and sends the digital voice information to the control system. According to the classification garbage can based on the LD3320 voice recognition chip, a user can accurately put garbage without having garbage classification knowledge, so that the problem of inaccurate putting is solved; social popularization of garbage classification is facilitated; and the garbage stacking degree in the can can be accurately and automatically judged, an alarm is given at proper time, and the manual maintenance workload is further reduced.