Electric motorcycle and power battery mounting and fixing assembly thereof

The utility model relates to an electric motorcycle and a power battery mounting and fixing assembly thereof. The power battery mounting and fixing assembly comprises a frame, a containing part and a helmet box. The frame is provided with a containing space used for containing a power battery. The helmet box is provided with a pressure-bearing part, and the pressure-bearing part is used for being in tight abutting fit with the top end of the power battery. On one hand, by adjusting the shape of the helmet box and the shape of the frame, the containing space for containing the power battery is formed between the helmet box and the bottom of the frame, and the power battery is arranged in the containing space, so that the space is reasonably utilized, the power battery does not need to be arranged below the pedal, and the size of the frame is not too large; and on the other hand, when the power battery is replaced and maintained, the helmet box is detached from the frame, the power battery is taken down, and as