Chemical dosing device of chemotherapy pump

The utility model belongs to the technical field of medical auxiliary equipment application, and particularly relates to a chemotherapy pump dosing device which comprises a fixing box, a first cavity is formed in the fixing box, a gasket is arranged on the upper end face of the cavity, a bottom plate is arranged on the upper end face of a threaded rod, and a medicine cylinder is arranged on the inner side face of a second cavity. A first one-way valve and a second one-way valve are arranged on the outer surface of the medicinal tube, a medicine conveying tube is arranged at one end of the first one-way valve, a fixing device is arranged on the outer surface of the chemotherapy pump, and a medicine outlet tube is arranged on the lower end face of the chemotherapy pump. By arranging the first one-way valve and the second one-way valve, medicine in a chemotherapy pump cannot be sucked in when the push rod motor sucks the medicine, and the medicine in the chemotherapy pump cannot be conveyed to the medicine sucti