Hydraulic motor with oil distributed on end face

The utility model relates to an end face oil distribution hydraulic motor which comprises a shell, an oil passing disc, an oil distribution disc and a crankshaft plunger type cylinder assembly, the oil passing disc is installed on one side of the shell, and the oil distribution disc is arranged in the oil passing disc and connected with a crankshaft in the crankshaft plunger type cylinder assembly through a double-end key. An annular sealing groove is formed in the end face, facing the oil passing disc, of the oil distribution disc, a sealing ring and a sealing ring for positioning the sealing ring in the bottom of the sealing groove are installed in the sealing groove, and the oil distribution disc is characterized in that a positioning protruding part extending in the radial direction is arranged on the sealing ring, and a positioning groove for the positioning protruding part to be located is formed in the end face of the oil distribution disc. After the structure is adopted, the sealing ring cannot rotate