The invention discloses a device capable of removing traditional Chinese medicine herb roots conveniently. The device comprises a base, four sets of sliding rods fixed to the base and a rotary shaft.A limiting block is in threaded connection with the upper end of each sliding rod. Each sliding rod is cylindrical, and a moving sliding body is arranged on the outer portion of each sliding rod in asleeving manner. A connecting part is fixedly mounted between every pair of sliding bodies. A first cutting knife is fixed below each connecting part. A connecting plate is fixedly assembled on the side face of the outer wall of the base. A first shaft bracket and a second shaft bracket are fixed to the inner side of the bottom of the base. The rotary shaft penetrates through the first shaft bracket and the second shaft bracket. A rotary wheel is fixedly assembled beside the first shaft bracket and penetrates through the rotary shaft. The edge of the rotary wheel is in pin shaft connection with a connecting rod mechanism. Second cutting knives are fixed to knife supporting frames. The position, located on one side of the connecting plate, of the rotary shaft is connected with a motor. Theside, stretching out of the base and being away from the motor, of the rotary shaft is fixedly connected with a steel wire wheel. According to the device, the cutting knives are arranged on the two sides at the same time, and work can be carried out on the two sides at the same time. The device has the advantages of being simple in structure and high in efficiency.