Striking pin protection device for firing of empty firearm and using method of firing pin protection device

The invention discloses a firing pin protection device for firing an empty firearm and a using method, which can be used for carrying out secondary buffering on a firing pin and effectively protecting the firing pin. Comprising a shell tail and a shell head, the shell tail and the shell head are in threaded connection to form a shell, a sliding ring, a sliding block and a buffer spring are arranged in the shell, a stepped inner hole is formed in the shell tail, the sliding ring is in sliding fit with the large end of the stepped inner hole, a nylon screw is fixed in a center hole of the sliding ring in a threaded fit mode, and a screw rod of the nylon screw penetrates through the small end of the stepped inner hole. A spring mounting hole is formed in the head of the shell, the sliding block is in a rotary T shape, the small end of the sliding block is in sliding fit in the spring mounting hole, the large end of the sliding block makes contact with a nut of the nylon screw, and the two ends of the buffer spri