With the development of information technology,as one of the core technologies of radar system,active location technology has great research significance in the background of multi-base and formation cooperation in the future.Based on multi-platform,this paper studies the one-trans-mit multi-receiver active location algorithm based on time of arrival(TOA),and analyzes the effect and accuracy of the algorithm.Through Matlab simulation,this paper compares and verifies the in-fluence of various environmental parameters on the positioning performance of the algorithm,and provides a certain reference for multi-platform active location and other related engineering applica-tions.