The invention discloses a hemiplegic patient four-limb rehabilitation physical therapy device. The device comprises a seat box, a lower limb physical therapy assembly, an upper limb physical therapy assembly and a control device; an installing base is arranged at the bottom of the seat box, a fixing base is arranged on the installing base, a back plate is arranged at the rear end of the seat box,the lower limb physical therapy assembly comprises a rotating motor, a connecting rod and a lower limb physical therapy cylinder, the upper limb physical therapy assembly comprises an upper limb motion pull rod and a shoulder massage assembly, and the control device comprises a controller, a processor and a remote controller; the rotating motor is arranged inside the seat box, the lower limb physical therapy cylinder is movably hinged to the fixing base and an eccentric rotating wheel, the lower end of the upper limb motion pull rod is movably hinged to the connecting rod, the shoulder massageassembly is movably arranged on the back plate, the controller is connected with the rotating motor, and the remote controller and the processor are connected with the controller separately; the device is simple in structure, reasonable in design, capable of achieving active training and passive training of a hemiplegic patient, and suitable for great popularization.