An end effector of a surgical linear stapler, comprising: a staple cartridge which is internally loaded with staples for stapling tissue; an anvil facing the staple cartridge to form the staple discharged from the staple cartridge; a pusher unit (200, 7100) which is arranged on the staple cartridge, facing the staple to push the staple in a height direction of the staple cartridge, i.e. a first direction, while being moved by external force so that the staple can be discharged from the staple cartridge; a driving wedge which is arranged on the staple cartridge to press the pusher unit in the first direction while being moving along a lengthwise direction of the staple cartridge, i.e. a second direction, by external force; a stabilizer unit (400, 1400, 2400, 4400, 7200) which is arranged on the staple cartridge while neighboring on the pusher unit and at least partially discharged from the staple cartridge by the driving wedge to hold tissue placed in between the staple cartridge and the anvil; and a blade unit which comprises a blade for cutting tissue stapled by the staples and moves the driving wedge in the second direction, wherein the staple cartridge comprises a cartridge main body, and the cartridge main body comprises a first guide slit for guiding the blade to move, a first staple discharge hole array and a second staple discharge hole array formed at opposite sides with respect to the first guide slit, and a first stabilizer discharge slit formed in between the first staple discharge hole array and the first guide slit and allowing the stabilizer unit (400, 1400, 2400, 4400, 7200) to be at least partially discharged, characterized in that the pusher unit and the stabilizer unit are formed as a single body and simultaneously moved in the first direction by the driving wedge. a staple cartridge which is internally loaded with staples for stapling tissue; an anvil facing the staple cartridge to form the staple discharged from the staple cartridge; a pusher unit (200, 7100) which is arranged on the staple cartridge, facing the staple to push the staple in a height direction of the staple cartridge, i.e. a first direction, while being moved by external force so that the staple can be discharged from the staple cartridge; a driving wedge which is arranged on the staple cartridge to press the pusher unit in the first direction while being moving along a lengthwise direction of the staple cartridge, i.e. a second direction, by external force; a stabilizer unit (400, 1400, 2400, 4400, 7200) which is arranged on the staple cartridge while neighboring on the pusher unit and at least partially discharged from the staple cartridge by the driving wedge to hold tissue placed in between the staple cartridge and the anvil; and a blade unit which comprises a blade for cutting tissue stapled by the staples and moves the driving wedge in the second direction, wherein the staple cartridge comprises a cartridge main body, and the cartridge main body comprises a first guide slit for guiding the blade to move, a first staple discharge hole array and a second staple discharge hole array formed at opposite sides with respect to the first guide slit, and a first stabilizer discharge slit formed in between the first staple discharge hole array and the first guide slit and allowing the stabilizer unit (400, 1400, 2400, 4400, 7200) to be at least partially discharged, characterized in that the pusher unit and the stabilizer unit are formed as a single body and simultaneously moved in the first direction by the driving wedge.