Surgical stapler staple-cabin assembly with mounting security safety unit

The invention relates to a surgical stapler staple-cabin assembly with a mounting security safety unit. The surgical stapler staple-cabin assembly is a surgical stapler supporting device for applyinga linear-row stapler to intra-cavity tissue and meanwhile cutting the tissue within the linear-row stapler, and is used for avoiding the situation that a staple cabin assembly is not assembled well and accordingly cannot be in use. The surgical stapler staple-cabin assembly includes a staple abutting base, a staple cabin base, rotary head pins, an upper rotary joint, a lower rotary joint, staple cabin spring pieces, a staple cabin, a push block, push pieces, suture staples, staple cabin base pins, an upper half shell, a lower half shell, H-shaped blocks, rising prevention plates, an arc clamp,a cutter, a drive sleeve, a sleeve pipe, a steering pull hook and a protection cover. A limit block is arranged at the inner side of the arc clamp, two clamp pins are arranged at the tail end of thearc clamp, and a fixing poi