If there are more than one target in the detecting area，the bistatic passive sonar direction-finding system will generate multiple intersection points through the cross positioning of target bearing lines. Correlating the measured bearings by passive sonars to eliminate the illusive intersections and select the real ones. Under the condition where that two passive sonars keep continuous tracking of the target position，a decision rule is proposed to estimate the position and bearing value of the target by using bearing pre-correlation to form a correlated track，and to determine the correctness of pre-correlation depending on the deviation between the estimated value and the bearing value measured by sensors. The effectiveness of this method is verified by simulation of marine experimental data.