Anti-reverse-plugging precision connector

The utility model relates to the technical field of connectors, and discloses an anti-reverse-insertion precision connector, which comprises a first connector and a second connector, positive pole blocks are fixedly connected to two side surfaces, upper and lower ends and centers of the interiors of the first connector and the second connector, and the positive pole blocks are fixedly connected to the two side surfaces, the upper and lower ends and the centers of the interiors of the first connector and the second connector. Negative pole blocks are fixedly connected to the upper and lower ends and the centers of the interiors of the first connector and the second connector and the surfaces of the two sides, close to the centers, of the interiors of the first connector and the second connector, and first fixing blocks are fixedly connected to the surfaces of the upper and lower ends, away from the centers, of one side of the first connector; a connecting plate is fixedly connected to the surface of the bottom