Disclosed is a staple cartridge assembly comprising a staple cartridge body (1) and a staple cartridge protective cover (2), the staple cartridge body (1) including a staple chamber (12) and a suturing staple (3), at least a part of the suturing staple (3) being disposed inside the staple chamber (2), the staple cartridge protective cover (2) including a partition plate (21). The staple cartridge protective cover (2) is detachably connected to the staple cartridge body (1) with a direct or indirect manner after the staple cartridge protective cover (2) is connected to the staple cartridge body (1), a space for preventing the partition plate (21) from contacting the staple chamber (12) is formed between the staple cartridge body (1) and the partition plate (21). The staple cartridge assembly can ensure the suturing staple (3) be well enclosed inside the staple cartridge body (1) when not triggered, so as to prevent the suturing staple (3) from leaving the staple cartridge body (1) due to extrusion or external force during storage and transportation. Meanwhile, it can solve the problem that some of the suturing staple (3) is carried by and leave the staple cartridge body (1) together with the staple cartridge protective cover (2) when the staple cartridge protective cover (2) is removed.Linvention concerne un ensemble cartouche dagrafes comprenant un corps de cartouche dagrafes (1) et un couvercle de protection de cartouche dagrafes (2), le corps de cartouche dagrafes (1) comprenant une chambre dagrafes (12) et une agrafe de suture (3), au moins une partie de lagrafe de suture (3) étant disposée à lintérieur de la chambre dagrafes (2), le couvercle de protection de cartouche dagrafes (2) comprenant une plaque de séparation (21). Le couvercle de protection de cartouche dagrafes (2) est relié de manière amovible au corps de cartouche dagrafes (1) dune manière directe ou indirecte après que le couvercle de protection de cartouche dagrafes (2) est relié au corps de cartou