Abstract: A systematic study was conducted on the structure of anti electric shock switchgear in high and low voltage complete sets of equipment to address the risk of electrical shock in the operation environment of water gates. Key design schemes such as protection level, isolation mechanism, grounding system, and secondary circuit protection were elaborated, and a complete protection structure system was constructed. By establishing a finite element simulation model to analyze the electric field distribution and combining it with typical accident scenarios, dynamic response testing and verification are carried out. The research results indicate that the design has good insulation performance and safety response capability in complex environments, meeting the requirements of engineering applications.