A surgical linear stapler comprising: a staple cartridge which is internally loaded with staples for stapling a surgical site; a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein; an anvil which faces the staple cartridge and shapes the staple discharged from the staple cartridge; and a cutter which moves along a lengthwise direction of the staple cartridge by external force and cuts the surgical site arranged in between the staple cartridge and the anvil, wherein the staple cartridge comprises a cutter guide for guiding the cutter to move along a lengthwise direction of the staple cartridge, and a cartridge body formed with more than one rows of left staple discharge holes and more than one rows of right staple discharge holes arranged at opposite sides of the cutter guide, and wherein the more than one rows of right staple discharge holes have a first row of right staple discharge holes for being loaded with a first right staple, the most adjacent to the cutter guide in a rightward direction, and the more than one rows of left staple discharge holes have a first row of left staple discharge holes for being loaded with a first left staple, the most adjacent to the cutter guide in a leftward direction, characterised in that the first row of right staple discharge holes is more distant from the cutter guide than the first row of left staple discharge holes so as to have, after shaping of the staples (1a, 3a), a distance between a cutting section of the surgical site and a first right stapling line which is the nearest to the cutting section on a first surgical site to be removed from a human body greater than a distance between said cutting section and a first left stapling line which is the nearest to the cutting section on a second surgical site to remain in a human body, to thereby obtain a tissue area for pathological examination, which is not damaged by the staple, from the surgical site, and wherein the surgical linear stapler further comprises an indicator which is arranged in at least one of an outer surface of the anvil and an outer surface of the cartridge accommodating channel and indicates a position of the more than one rows of right staple discharge holes so that the tissue area for pathological examination is included in an organ tissue area which is removed. a staple cartridge which is internally loaded with staples for stapling a surgical site; a cartridge accommodating channel which is formed with a cartridge accommodating groove to accommodate the staple cartridge therein; an anvil which faces the staple cartridge and shapes the staple discharged from the staple cartridge; and a cutter which moves along a lengthwise direction of the staple cartridge by external force and cuts the surgical site arranged in between the staple cartridge and the anvil, wherein the staple cartridge comprises a cutter guide for guiding the cutter to move along a lengthwise direction of the staple cartridge, and a cartridge body formed with more than one rows of left staple discharge holes and more than one rows of right staple discharge holes arranged at opposite sides of the cutter guide, and wherein the more than one rows of right staple discharge holes have a first row of right staple discharge holes for being loaded with a first right staple, the most adjacent to the cutter guide in a rightward direction, and the more than one rows of left staple discharge holes have a first row of left staple discharge holes for being loaded with a first left staple, the most adjacent to the cutter guide in a leftward direction, characterised in that the first row of right staple discharge holes is more distant from the cutter guide than the first row of left staple discharge holes so as to have, after shaping of the staples (1a, 3a), a distance between a cutting section of the surgical site and a first right stapling line which is the nearest to the cutting section on a first surgical site to be removed from a human body greater than a distance between said cutting section and a first left stapling line which is the nearest to the cutting section on a second surgical site to remain in a human body, to thereby obtain a tissue area for pathological examination, which is not damaged by the staple, from the surgical site, and wherein the surgical linear stapler further comprises an indicator which is arranged in at least one of an outer surface of the anvil and an outer surface of the cartridge accommodating channel and indicates a position of the more than one rows of right staple discharge holes so that the tissue area for pathological examination is included in an organ tissue area which is removed.