In view of the special circumstances of large scale complex weapon and equipment cooperative operation in the same time and space, this paper carries out the research on multi computer cooperative operation under the specific virtual operation environment of LAN. The paper constructs the LAN environment by Unity3D/network technology based on component network algorithm module built a good package by the optimization of join counter and control script call algorithm, reducing the collaborative process of multiple machines from the server to the client network delay. The results show that the optimization algorithm is better than the network module builtin encapsulation algorithm, and is fully satisfied with the multi computer cooperative operation under condition of specific virtual operation environment.