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Jumping locomotion is an ideal means of overcoming obstacles and traversing rough terrain. By taking inspirations from the locust, this paper presents the development and analysis of a novel crank-slider jumping mechanism. Firstly, the locust morphology is described and the posture of hindlimbs at take-off phase is analyzed. Base on that, a crank-slider mechanism is proposed to mimic the locust hindlimb. The mechanical analysis shows that the ground reaction force is similar to that of the locust during take-off stage, which reduce the possibility of premature lift-off and lays the foundation for developing the small jumping robot. Then, the designed robot employs elastic elements in the crank-slider mechanism, which is triggered by the segment-gear system. At last, its jumping performance is verified by kinematic modeling.