Abstract: Objective: To ensure the safety of city rail transit line catenary grounding operation, improve the quality and efficiency of maintenance work, it is necessary to carry out research on developing an AC (alternating current) catenary visual grounding management system (hereafter VGMS for short) with remote operation and realtime monitoring functions. Method: The existing rail transit catenary grounding methods and the safety hazards of conventional manual grounding methods are expounded. The research objectives of the VGMS are clarified, and the key technologies of VGMS are analyzed (such as online accurate realtime power inspection, power supply network topology safety interlocking, and dual confirmation of nonhomologous device states). A visual power inspection and grounding device suitable for AC catenary is developed, and the system operation process is illustrated using remote grounding as an example. Result & Conclusion: The remote VGMS solves the problems of low operation efficiency and inadequate safety assurance in conventional methods, effectively improving the safety capabilities of personnel and equipment in the operation and maintenance process, thereby improving the efficiency and quality of catenary maintenance.