Considering radar detection for multi-target recognition,a track before detect (TBD) algorithm based on Hough transformis adopted for identifying and tracking multi-target radar. By increasingthe dimensions of the target characteristic parameters,the target detection and track accuracy is increased. Also, by multilevelfiltering processing, the diverging points of the echo signalare condensed, which improves the performance of identifying andtracking multiple targets. Simulation results show that comparedwith traditional TBD algorithms, the presented algorithm has betterperformance in the aspects of multi-target tracking, detecting anddistinguishing.