The invention provides a biological test bed convenient to clean and relates to the technical field of biological test beds. The biological test bed convenient to clean comprises a base test bed, wherein a cleaning frame is fixedly mounted at the top of the base test bed, a case is fixedly mounted on the left side of the cleaning frame, a motor is fixedly mounted in the case, and an output end ofthe motor is movably connected with a screw rod. According to the biological test bed convenient to clean, through the cleaning frame, the motor, the screw rod, a threaded ring, sliding rods, pulleys,an electric telescopic rod, a mounting plate, a clearing brush, a spray plate, a cleaning liquid box, a water pump, a liquid inlet pipe and a liquid outlet pipe, the motor is started and can drive the threaded ring to move leftwards and rightwards through the screw rod, meanwhile, the threaded ring can drive the clearing brush and the spray plate at the bottom of the threaded ring to move leftwards and rightwards, meanwhile, the electric telescopic rod can drive the clearing brush and the spray plate to move up and down, a cleaning liquid in the cleaning liquid box can be sprayed out from thespray plate under the suction action of the water pump, in general, synchronous brushing washing and spray cleaning are realized, and the cleaning effect is better.