The invention discloses a pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve, which comprises a valve body, a cone valve in the valve body, a cone valve connecting rod for connecting the valve body and the cone valve, a sleeve and a spring between the cone valve and an inner end cover, a piston in a cone valve control switch, a permanent magnet positionedat the front end of the piston, and a hydraulic oil channel communicated with a connecting channel of a hydraulic oil cylinder, wherein a cone valve driving rod connected with the cone valve connecting rod is connected with the end surface of the permanent magnet. The valve is characterized in that the outer wall of the hydraulic oil channel is wound with an electrified coil, the cone valve is provided with a hydraulic oil pressure-supplementing channel and a pressure-releasing channel which are crossways staggered, and the valve body is provided with a pressure-supplementing inlet and a pressure-releasing outlet of hydraulic oil. The valve has the bidirectional conduction function of selectively performing pressure supplementing and pressure releasing, can ensure the stability of the pressure in the hydraulic oil cylinder, indirectly control the pressure in the hydraulic oil cylinder through the electric current, and ensure that the control precision is higher and the performance is steadier; and the valve improves the safety of the operation of the hydraulic oil cylinder.