The invention relates to a traditional Chinese medicine pill preprocessing deoiling device which is characterized by comprising a bracket, a box body on the bracket, a transmission device and a carrying and deoiling device, wherein the transmission device and the carrying and deoiling device are arranged in the box body; the bottom of one end of the box body is provided with an oil outlet; the transmission device comprises a motor installed on a motor bracket; the motor bracket is tightly fixed on the side wall of one end of the box body; the motor is sequentially connected with a coupling and a transmission shaft; the other end of the box body is provided with an idle wheel shaft; a drive chain wheel is fixedly arranged on the transmission shaft, a driven chain wheel is fixedly arranged on the idle wheel shaft, and a chain is arranged between the drive chain wheel and the driven chain wheel; the carrying and deoiling device comprises transmission boxes, the bottoms of which are tightly fixed on the chain, and the whole chain is continuously provided with the transmission boxes; the bottom of each transmission box is in a hollow shape, and the hollow position of the bottom of eachbox is smaller than the diameter of a traditional Chinese medicine pill; a high-pressure airflow nozzle is arranged in the middle of the box body and positioned in the right upper part of each transmission box and connected with an adjustable high-pressure air pump assembled outside the box body by a hose pipe.