The invention relates to an intelligent bicycle lock with a power generation device. The bicycle lock is mounted on a bicycle, and comprises a waterproof shell, and the power generation device and an accumulator mounted in the shell; the power generation device further includes connecting shafts, an elastic piece, friction wheels, a generator, a pin and a bracket, wherein the friction wheel and the generator are respectively fixed on the bracket through the connecting shafts; the elastic piece is fixed on the pin; and the friction wheels are pressed at two ends of the elastic piece. The friction wheels are contacted with frontal surfaces of bicycle wheels under the effect of the elastic piece; when the wheels rotate, the friction wheels can be driven to drive rotation of the connecting shafts; and the connecting shafts drive rotation of the generator to generate electricity. The intelligent bicycle lock has the following beneficial effects: the method can be stably and reliably connected with a bicycle to operate for power generation under the condition of not influencing by external environment factors and bicycle speed; and the riding is power-saved.