The invention discloses an auxiliary stitch device for a kick target. The auxiliary stitch device for the kick target comprises a supporting device, a telescopic device, a pressing plate and a supporting plate, wherein the supporting device comprises a base and an upright column; the bottom surface of the upright column is fixedly connected with the base; a first cross beam is horizontally arranged at the top of the upright column; a second cross beam is horizontally arranged right below the first cross beam; the first cross beam and the second cross beam are fixedly connected with the upright column respectively; the pressing plate and the supporting plate are horizontally arranged, and the outer contour of the pressing plate is the same as the inner contour of a kick target jacket; the telescopic device is arranged between the first cross beam and the second cross beam in the vertical direction; the fixed end of the telescopic device is fixedly connected with the lower end surface of the first cross beam; the movable end of the telescopic device is fixedly connected with the upper end surface of the pressing plate; the supporting plate is positioned right below the pressing plate, and the lower end surface of the supporting plate is fixedly connected with the upper end surface of the second cross beam. A person can fulfill the stitching process, the stitching quality is good, the working efficiency is high, and the production cost is reduced.