The invention discloses a heating and pressurizing device for blood transfusion in a hematology department. The device structurally comprises supporting legs, an outer shell, a heat dissipation grid,a door groove, a lifting handle, a body device, a handle, a movable door, a control panel, a display screen, operating buttons, indicator lights and blood transfusion tube connection ports. The body device is arranged in the outer shell and comprises a hook, an arc fixing block, a blood transfusion bag, a blood transfusion bag connection tube, a blood circulation tube, a temperature sensor, a heating mechanism, a power mechanism and a pressurizing mechanism. The heating and pressurizing device for blood transfusion in the hematology department has advantages that by mounting of the heating mechanism, the power mechanism and the pressurizing mechanism in the body device, heating and pressurizing of the blood transfusion bag can be realized, compact structure, high integrity and easiness inreplacement of the blood transfusion bag are realized, and convenience in use is provided for medical personnel.