For underwater target detection of multiacoustic sensors information processing and cooperative confrontation strategy, this paper researches the correlation between sonar signal detection and collaborative confrontation decision, analyzes the characteristics of acoustic sensing signal, gives out a processing algorithm of acoustic detection signal recovery and separation. Based on acoustic sensing signal, according to the game model of multi acoustic sensing signal and synergetic countermeasure decision method, and the condition of detecting and confrontation between the two sides of underwater acoustic sensing signal, and the reasoning analysis and function solving method are given in detail. Through the processing of a given acoustic sensing signal and the game analysis of two groups of collaborative warfare, the acoustic sensing detection collaborative confrontation decision is verified.