The invention relates to a non-pneumatic tyre for an electric vehicle, and particularly relates to a single-pore non-pneumatic tyre mounting and dismounting machine. Aiming at the technical defects that the time and the labor force are wasted by manually mounting or dismounting the non-pneumatic tyre, an existing manual manner is not suitable for the factory batch production, the production efficiency is influenced and the tyre is easily damaged, the invention provides the single-pore non-pneumatic tyre mounting and dismounting machine. A drive mechanism drives an annular pressing plate to descend to support the tyre to move the tyre down, so that dismounting or mounting of the non-pneumatic tyre and a hub of the electric vehicle is rapidly completed, the single-pore non-pneumatic tyre mounting and dismounting machine is suitable for the factory batch production and the tyre can not be damaged easily, wherein the tyre penetrates through a tire mounting base which is small in the upper part and large in the lower part when being mounted and then sleeves the hub, and the hub is directly pressed down when being dismounted to ensure that the tyre is dismounted from the hub.