Differential reset type three-position two-way hydraulic valve

The invention discloses a differential reset type three-position two-way hydraulic valve, and relates to the field of control valve structures. A core body mounting cavity and a piston mounting cavity which are coaxial and communicate with each other are formed in the valve body in the direction of the two ends. The valve element comprises an element body, a piston and an inner sleeve plug, the element body is in clearance sliding connection with the interior of the element body mounting cavity in the axial direction of the element body mounting cavity, and an annular circulation groove communicated with the oil inlet hole and the oil outlet hole is formed in the side wall of the element body; the piston is in clearance sliding connection in the piston mounting cavity in the axial direction of the piston mounting cavity; the inner sleeve plug is installed in the inner sleeve plug sliding hole in a clearance sliding mode. The outer diameter of the core body is smaller than that of the piston, and the outer dia