Disclosed is a damping power generation structure for an automobile. A piezoelectric crystal power generation block is fixed on a frame, a piezoelectric crystal chip and an elastic metal plate are adhered to form the piezoelectric crystal power generation block, the piezoelectric crystal power generation block is mounted on the frame in an insulated manner, two ends of a shock absorption spring are mounted on an axle and the piezoelectric crystal power generation block respectively, a piston rod of a damper is mounted on the axle, the bottom of a damper cylinder is mounted on the piezoelectric crystal power generation block, an output circuit of the piezoelectric crystal power generation block is serially connected with two super-capacitors through a rectifier, and a normally open switch is parallelly connected on each super-capacitor. Mechanical energy generated by shock is converted into electric energy when damping is performed, the electric energy is stored through an energy storage device, energy is sufficiently used and saved, the structure of a cantilever beam can function in damping, the shock sensation of the automobile in running is further reduced, and riding comfort is improved.