The present invention can automatically convert the wave energy of waves into the bit energy of water, under the condition that there are relative movements with wave fluctuations.
The device is simple, lightweight, easy to maintain and does not suffer from the friction loss of conventional cylinders.

An automatic pumping water device for ocean wave energy includes a cavity, a buoy and a support. The cavity is fixed on a support, and the support is fixed in the sea. 
The cavity is composed of a cylinder, a piston, a soft object and a ring.
When seawater falls, the weight of the buoy itself will compress the soft object down, so that the pressure forces the seawaterthrough the outlet connecting water pipe to the container at the high position on the sea.
Therefore, when wave fluctuations occur, the power prodced by the vertical movement of the buoy will automatically continue the seawater output to the high position on the sea.

應用於海岸、以及船上擷取海浪能。