This paper studies the problem of maneuvering target tracking, and focuses on the maneuvering target tracking algorithm under the framework of autonomous multiple model, cooperative multiple model and variable multiple model structure, and deduces the processing steps of the typical tracking algorithm under the above three types of multi-model structure framework. Combined with the practical application requirements of radar networking system, a feasible method for spatial registration and time registration is proposed. The effectiveness of multi-model tracking algorithm is verified by constructing radar network simulation environment. The application of multi-model tracking algorithm in radar network system is sorted out and summarized. The conclusions given in this paper have guiding significance for the engineering implementation of radar networking system.