Disclosed is a staple cartridge seat (1) for a disposable intracavity cutting anastomat, comprising: an arc-shaped staple cartridge seat body (1-1), a staple cartridge mounting groove (1-2) provided inside the arc-shaped staple cartridge seat body (1-1) and a cutting blade sliding groove (1-3) provided on an arc-shaped face of the arc-shaped staple cartridge seat body (1-1), a cutting blade seat sliding groove (1-4) provided on the outside of the cutting blade sliding groove (1-3), a staple cartridge fixing recessed groove (1-5) provided at two sides of the arc-shaped staple cartridge seat body (1-1), a support staple seat positioning pin hole (1-6) provided at a rear end of the arc-shaped staple cartridge seat body (1-1), and a support staple seat mounting and positioning platform (1-7) provided at two sides of the rear end of the arc-shaped staple cartridge seat body (1-1). A staple cartridge seat locking step (1-8) is provided at the rear end of the cutting blade seat sliding groove (1-4). An arc-shaped staple cartridge seat body is used for the staple cartridge seat, and a support staple seat mounting and positioning platform is provided at two side faces of the rear part of the staple cartridge seat, such that two side faces of a support staple seat are aligned with two side faces of the staple cartridge seat, and a cutting blade seat will not lacerate a sealing ring of a puncture instrument in the process of anastomosing and cutting tissue, ensuring that the anastomotic and cutting surgery is performed smoothly.La présente invention concerne un siège de cartouche dagrafes (1) pour une anastomose dincision intracavitaire jetable, comprenant : un corps de siège de cartouche dagrafes en forme darc (1-1), une rainure de montage de cartouche dagrafes (1-2) disposée à lintérieur du corps de siège de cartouche dagrafes en forme darc (1-1) et une rainure coulissante de lame coupante (1-3) disposée sur un corps de siège de cartouche dagrafes en forme darc (1-1), une r
