The water surface jumping is very challenging for terrestrial animals. Pygmy Mole Crickets are incredibly explosive through the circular paddling motion of their hind legs and the high explosive force generated by their fast paddles. A water surface jumping robot is designed based on the inspiration of the pygmy mole cricket. The crank-slider mechanism was designed to enable the robot's driving paddle to produce a circular paddling trajectory relative to the body. In order to generate high explosive force when driving paddle paddling, an energy storage mechanism with carbon fiber as the energy storage element was designed, and the output force was greatly improved by using carbon fiber end fixation. The robot jumping dynamics model was established, and the effect of robot driving leg length on robot jumping height was analyzed using ADAMS. Finally, a jumping experiment was conducted. The robot weighs 303 g, dimensions: 272 mm × 230 mm × 125 mm, and the robot jumping height is 265 mm.