Peristaltic pump

A peristaltic pump comprises a fixed plate, a motor, a squeezing element, a hose, a lower cover and a handle, wherein the motor is arranged on the fixed plate, the squeezing element is arranged on an output shaft of the motor, and the lower cover is used for supporting the hose and slidably arranged on the fixed plate. A groove is formed in the fixed plate, an eccentric wheel is arranged in the groove, the handle is connected with the eccentric wheel through a shaft, and the shaft penetrates the lower cover. By the aid of an eccentric wheel mechanism, the distance between the lower cover and the squeezing element is adjusted, the lower cover is used for supporting the hose, so that the distance between the squeezing element and the hose can be adjusted, the need of a traditional peristaltic pump for an integrated structure of the hose and a peristaltic pump body is avoided, and the hose can be conveniently detached and mounted.