The invention relates to a novel medical sewage treatment device. The novel medical sewage treatment device comprises a bracket, a tank body and a tank cover, wherein a dosing port is formed in the tank cover, a tank body water inlet pipe and a tank body water outlet pipe are separately arranged at the top of the left side of the tank body and the bottom of the right side of the tank body, a first motor is arranged on the bottom wall of the tank body, a plurality of stirring rods are arranged at the top end of an output shaft of the first motor, a filtering chamber is arranged at the left side of the tank body, a filtering chamber water inlet is formed in the top of the left side of the filtering chamber, a filtering chamber water outlet is formed in the bottom of the right side of the filtering chamber, the filtering chamber water outlet communicates with the tank body water inlet pipe, a filter screen is arranged at the filtering chamber water outlet, a second motor is arranged on a top wall, a rotating shaft is connected with the bottom end of an output shaft of the second motor, a plurality of top crushing blades are arranged at the bottom end of the rotating shaft, a precipitating cylinder is further arranged below the filtering chamber, and a cleanout door is further arranged on the bottom wall of the precipitating cylinder. By adopting the structure, the novel medical sewage treatment device has the advantages that fixed foreign bodies in sewage can be effectively filtered, and meanwhile, the efficiency of sewage treatment is also increased.