The utility model relates to a hydraulic loading device with a standard force source. The hydraulic loading device comprises a loading cylinder, the loading cylinder comprises a cylinder body and a piston, the cylinder body is connected with a hydraulic oil pressure detection sensor, the hydraulic loading device further comprises a piston type pressure gauge, a detection port of the piston type pressure gauge is connected with the hydraulic oil pressure detection sensor through an oil pipe, and a first switch valve is arranged on the oil pipe in series. When the loading cylinder carries out normal loading operation; closing a first switching valve, damage to the piston type pressure gauge caused by oil pressure in the cylinder body is avoided; when the hydraulic oil pressure detection sensor needs to be calibrated; the loading cylinder does not perform loading operation; when the first switch valve is opened, the hydraulic oil pressure detection sensor can be directly calibrated through the piston type pressure gauge, the piston type pressure gauge is better than a standard force source of a hydraulic loading device, the hydraulic oil pressure detection sensor can be calibrated atany time, the hydraulic oil pressure detection sensor does not need to be disassembled and assembled, and the working process is greatly simplified.