Provided is a suture needle configured so that the strength of the tip portion thereof where a sharp point is formed is ensured and so that resistance when the suture needle is passed through tissue is reduced. A suture needle having a triangular cross-section and consisting of austenite stainless steel having a structure elongated in a fiber-like form has: two first sloped surfaces (11) which are ground and which have a ridge (20) therebetween； and one bottom surface (13) which is located between the two first sloped surfaces and which is ground. The ridge is formed to have: a first cutting edge (1) which is formed by the two intersecting first sloped surfaces (11)； a ridge section (20) which is located closer to a body than the first cutting edge and where the first sloped surfaces (11) do not intersect； and a second cutting edge (2) which is located closer to the front end side than the first cutting edge (1) and which is formed by two intersecting second sloped surfaces (12) which are ground, the two second sloped surfaces (12) being formed on both sides of the first cutting edge (1). The length L2 of the first cutting edge is in the range of three to twenty times the length L1 of the second cutting edge (2), and the tip (3) of the second cutting edge (2) is located at a position offset from the center of the material.L'invention concerne une aiguille de suture conçue de telle sorte que la force de sa partie pointe, sur laquelle un point tranchant est formé, est assurée, et de telle sorte que la résistance lorsque l'aiguille de suture a traversé un tissu est réduite. Une aiguille de suture comportant une section transversale triangulaire et constituée d'acier inoxydable à base d'austénite comportant une structure allongée sous une forme de type fibre comprend : deux premières surfaces inclinées (11) qui sont aiguisées et qui comprennent une arête (20) entre elles ； et une surface inférieure (13) qui est située entre les deux premières surfaces inclinées et qui e
