Jellyfishes are distributed in a wide range of depths in the ocean. After hundreds of millions of years of evolution, they have strong environmental adaptability. In this paper, a structure of soft jellyfish-like robot is proposed. Fast pneumatic network (FPN) is used to construct the actuator of the robot, and an electric push rod is used to realize the outside umbrella swing of the soft jellyfish-like robot. In this paper. The general structure model of the soft jellyfish-like robot is proposed. The structural parameters (dimensions of the chamber and actuator) of the robot are optimized using the finite element method. The precision machining die is used to realize the fabrication of the soft structure. The steel sheet spring is used to strengthen the structure. The system integration of the model is realized through the connection of each component. The rising actuation of the soft jellyfish-like robot is verified in the experiment.
