Under the increasingly complex electromagnetic environmental conditions,passive location technology is widely used due to its unique characteristics.In this paper,through the correlation processing of multi-source sensor sensing data,the cor-relation relationship of the direction-finding data based on the signal propagation characteristics is established,and the basic credi-bility of each intersection location based on the cross-location algorithm is assigned.The DS(Dempster-Shafer)theory is utilized to the direction-finding data fusion and eliminate the false intersections in the correlation matching,so as to obtain a more accurate lo-cation of the radiation source.