The field operation and maintenance of power communication network is very important for the stable and effective operation of power communication network and smart grid. In order to ensure the quality of operation and maintenance of power communication network and improve the operation and maintenance operation efficiency, this paper presents a field of power communication network. The operation and maintenance work order scheduling optimization method promotes the efficient implementation of on-site operation and maintenance operations. Aiming at the characteristics of onsite work order dispatching in power communication networks, combined with the characteristics of operation and maintenance personnel and operating resources, a mathematical model for on-site operation and maintenance work order scheduling under multi-resource constraints is described and established, and then a virus genetic algorithm is used to solve the problem. This paper provides an experimental evaluation of the proposed algorithm and verifies the effectiveness and feasibility of the proposed algorithm in field job maintenance scheduling under multi-resource constraints.