Based on the actual needs of laser warning,research on sorting and decoding of mixed laser guided signals is studied in this paper.The feature of mixed laser guided signals was analyzed,a new method to sort the mixed signals was proposed,and the sorting and decoding software of mixed laser guided signals was written.Three kinds of mixed signals were sorted and decoded using this software,which contain PRF(Pulsed Repetition Frequency)mixed PRF signals,PRF mixed PIM(Pulse Interval Modulate)signals,and PIM mixed PIM signals.The results showed that the mixed signals which contain PIM signal could be sorted and decoded correctly by using the method of frame cycle analysis,and the total time for sorting and decoding is short,which can meet the actual needs.