Peristaltic pump

The invention provides a peristaltic pump which comprises a rack, a rocker assembly, a pressing block, a pump pipe fixing assembly, a driving motor and a roller assembly, the driving motor is installed in the rack, an output shaft of the driving motor is sleeved with the roller assembly, a pump pipe is placed on the roller assembly, and the rocker assembly is connected with the roller assembly. The roller assembly is used for pushing the pump pipe to creep for liquid supply under the driving of the driving motor, the pump pipe fixing assembly is fixedly connected to the rack and used for fixing the two ends of the pump pipe, the rocker assembly is rotationally arranged on the rack, the pressing block is arranged on the rocker assembly, and the pump pipe fixing assembly is used for fixing the two ends of the pump pipe. And the rocker assembly can drive the pressing block to be close to the rolling wheel assembly so as to be matched with the rolling wheel assembly to press the pump pipe on the rolling wheel ass