Strength of a front end part having a sharp point of a medical suture needle is improved, and insertion resistance is reduced while keeping insertion mark is small after passing through tissue. A medical suture needle made of stainless steel includes: a cutting blade component (10)； and a body part (20) continuing to the cutting blade component. The cutting blade component formed with a shape whose degree of thickness decreases from the body part to a sharp point (14) includes: a first cutting blade part (11) and a second cutting blade part (12) continuing from the first cutting blade part. The first cutting blade part includes: two first slanted surfaces (11b) formed sandwiching an apex (11a)； and a first bottom surface (11c) sandwiched by the two first slanted surfaces, wherein cutting blades are formed at an edge constituting the apex and at edges where the first bottom surface and the two first slanted surfaces intersect. The second cutting blade part includes: first slanted surfaces, second slanted surfaces (12a) having rims(12b), which are approximately parallel to the apex, formed on the respective first slanted surfaces, or on the apex side of the second slanted surfaces, wherein an angle made by sandwiching the apex by the second slanted surfaces is smaller than the angle made sandwiching the apex by the first slanted surfaces, and a second bottom surface (12c) sandwiched by the second slanted surfaces, wherein cutting blades (12d) are formed at an edge constituting the apex and at edges where the second bottom surface and the two second slanted surfaces intersect.
