Abstract: In view of the problems existing in the construction power supply/consumption process, such as untimely electricity statistics, heavy workload in electricity cost accounting, and the inability to monitor the power supply/consumption lines and equipment in real time, this paper developed an intelligent management system for railway construction power, studied the key technologies of the system from three aspects: power supply/consumption monitoring, intelligent analysis and production evaluation of power consumption, and power safety assurance, implemented functions such as automatic statistics and analysis of electric quantity and charge, and visual display of power supply/consumption. The construction of this system has improved the stability and efficiency of power supply/consumption for railway construction, and provided auxiliary support for the construction unit, supervision unit and construction unit to make decisions on power management for construction.