In order to solve the problem of heterogeneous radar data fusion in Radar networking, the differences in detection distance, detection accuracy, radar period and processing delay among the different types of radar are studied and a hybrid radar data fusion method is proposed. In the presented method, the same type radar in the network is clustered and the centralized fusion strategy is adopted, then the distributed fusion strategy is adopted among different clusters, finally a unified fusion situation is formed. The simulation results demonstrate that the presented method is more accurate, more real-time and more continuous than the centralized fusion method, which indicates that the presented method is feasible and validity in engineering application.