In order to solve the problems of inaccurate investment management and extensive process control of distribution network projects, the application of digital technology in modern intelligent distribution network management mode was proposed. Based on the SG-UAP platform, the basic data and safety management and control content in the construction process of distribution network engineering are integrated, and the design idea of lean management and control system for distribution network engineering is proposed. The test results show that only one of the concurrent transactions operated by 50 users failed to be simulated; The longest and average response times reached 9s and 3s respectively, and the CPU utilization reached 60%. When simulating the concurrent transaction operations of 100 users, only 4 failed. The maximum and average response times were 14 seconds and 7 seconds, respectively. The CPU utilization reached 68%.