Abstract: An universal software defined wideband digital array processing architecture, to deal with the characteristics of wideband digital array radar system is proposed. This architecture is standardized, modularized, scalable and reconfigurable, based on high-speed routing and switching networks and high-speed point-to-point data transmission networks. According to the actual needs of a wideband digital array radar system, the system composition, control information, massive data transmission method and related functional implementation schemes and measured results are introduced in detail. The system implementation scheme proposed in this paper, can effectively improve the software and hardware collaborative development efficiency, of wideband digital array radar system,to facilitate the rapid application of new technologies, improve and expand the functional performance of radar systems flexibly.