A new type of bionic jumping mechanism was designed based on the locust with excellent jumping performance.According to the intermittent motion characteristics and efficient biological structure of the locust,the intermittent motion of jumping mechanism was provided by incomplete line gear transmission,the jump execution unit was used to simulate hind legs of the locust,and the spring was adopted as energy storage mechanism.The vertical jump motion of the jump mechanism was simulated,and the influence of the spring elastic coefficient on the jump ability was analyzed.The simulation result shows that the designed jump mechanism is feasible,and the jump mechanism has the characteristics of small size and strong jump ability.