In order to solve the problem of heavy labor and low efficiency of manual operation in Western pharmacy, the present study designed an automatic medicine storing cabinet module based on single chip microcomputer (SCM). The automatic medicine machine module was controled by using STM32 SCM, whose working principle was to use electromagnet to drive the tank to turn the medicine box into the lift, and deliver the medicine box to the designated place by the conveyor belt. The design is reasonable and feasible. It can provide a feasible method for design of drug delivery module.