Abdomen strengthening device capable of adjusting elastic resistance in multi stages

The utility model discloses an abdomen strengthening device capable of adjusting elastic resistance in multiple stages, comprising a resistance regulating mechanism which is axially sheathed on the axial rod of a support member, fastening boards, a handle, a drawing block and a sliding block; the resistance regulating mechanism is rotated, the fastening boards of the both sides of the axial rod are clamped in the U-shaped groove of the drawing block, the handle is pulled with strength to make the sliding block drive the drawing block to move, and the elastic strip is pulled by the abdomen and the arms to achieve the purpose of weight reduction; when the elastic resistance needs changing, the resistance regulating mechanism is adjusted, the fastening boards of the axial rod is clamped in the U-shaped groove corresponding to the drawing block and needing elastic resistance hierarchy so as to achieve the purpose of adjusting the elastic resistance. Thus, the utility model is challenging, interesting and convenient in operation; therefore, the purposes of weight reduction and degreasing of the abdomen can be better achieved.