An elastic member can implement functions of buffering and shock absorption while effectively supporting a vehicle body. On end of the elastic member is turned and bent towards the other end, and passes through the body of the elastic member. The turned and bent part forms a curled portion (3). Portions of the curled portion (3) extending towards two ends form a first arm (1) and a second arm (2). The curled portion (3) pre-stores deformation of a material to integrate an elastic capability of the material and specifically gather a weak elastic capability of a rigid material, thereby obtaining a higher elastic bending moment, and providing functions of buffering and shock absorption while bearing is provided. For a flexible material, the flexible material can be restrained by using the curled portion to increase rigidity and reduce randomness of deformation of the flexible material, thereby combining flexibility and rigidity.