Abstract: This paper discusses the design of the low-frequency electric cable network for satellite. By taking the low frequency electric cable network design for a special satellite as an example, the realization of the functions of the low frequency electric cable network is analyzed. In the ground testing period, the safety measures for protecting the satellite explosive, the solar array drive, and the storage battery are reviewed. In the verification of the prototype of the satellite, the low-frequency electric cable network design is shown to be reasonable and feasible, and can meet the mission requirements of the satellit.