Abstract: The article has specially studied several typical algorithms for tracking multiple dim point targets in image sequences，although they can complete all-the-way tracking under different environment.Tracking performance exists big difference.There is high real-time tracking performance in PDA algorithm，but it can’t solve displace and coalescence in multi-target tracking；JPDA has solved the multi-target data association problem theoretically，but it is not implemented in reality because of big error of tracking and very high computational load；The algorithm based on maximum entropy fuzzy clustering amend the degrees of membership，the date association is high and efficiently avoid the errors of tracking and lost phenomenon.Through several typical algorithms’ simulation analysis，provide the reliable basis for the algorithm optimization.