Introduction  Under the dual influence of the "3060" carbon peak and neutrality policy and the increasingly fierce competition of the general contracting mode in the energy sector, the digitalization of project management will become the core competitiveness of enterprises, and how to improve the digitalization level of project management will become a key.

  Method  This paper analyzed the necessity of digital transformation in digital economy and project management themselves, summarized the characteristics of current domestic and foreign project management platforms, and analyzed the weaknesses of enterprise level project management platforms in on-site management. On this basis, through the on-site collaborative management system of the general contracting project of a power engineering enterprise in South China, the digital transformation of on-site management of the general contracting project of the energy survey and design enterprise was systematically studied and verified.

  Result  The results show that the system can greatly improve the efficiency of project management and create management value through data.

  Conclusion  Establishing a general contracting project management platform with collaborative management of all parties, structured forms, full coverage of processes and comprehensive application of intelligent statements can vigorously promote the digital transformation of project management.