Ultrahigh-pressure zero-leakage electromagnetic valve

The utility model discloses an ultrahigh-pressure zero-leakage electromagnetic valve which comprises a valve body, an electromagnetic coil assembly and a piston element. Wherein the valve body comprises an inlet cavity and an outlet cavity, a valve port is fixedly formed in the valve body, and the valve port comprises a main valve port and a guide hole; the electromagnetic coil assembly comprisesa magnetism isolating pipe and a coil assembly. The piston element comprises a movable iron core and a valve needle; a spring guide hole and a valve needle guide hole communicated with the spring guide hole are formed in the movable iron core, the valve needle comprises a boss, a first guide column and a second guide column, the first guide column and the second guide column are arranged on the two sides of the boss, the first guide column penetrates through the valve needle guide hole and then extends into the guide hole, and sealing is formed between the end of the valve needle and the mainvalve port. A spring is ar