The bionic jellyfish robot, christened the "Underwater Ghost," has been independently developed by Tao Kai's research team at Northwestern Polytechnical University. This robot not only closely replicates the physical form and swimming motions of natural jellyfish but also incorporates artificial intelligence technology, enabling it to exhibit "embodied intelligence" beneath the waves. The robot is characterized by its transparency, compact size, and lightweight build, allowing it to precisely mimic jellyfish postures and operate with minimal noise. At its heart lies a self-developed electrostatic hydraulic muscle actuator and innovative hydrogel electrode materials, which contribute to its high driving energy efficiency and remarkably low power consumption. Guided by the principle of "drawing inspiration from nature," the robot showcases distinct advantages and vast potential for application in various scenarios, including deep-sea and coastal monitoring, ecological observation, and underwater facility inspections. Looking ahead, the research team plans to further advance their studies to facilitate the robot's practical deployment across an even wider range of fields.