In this paper the model of Cross-locating in the Radar netting under the condition of jam is discussed, and the distributing of the error in Cross-locating is analyzed. Aiming at the problem of the instability in Confusion error, a fusion model is founded to proofread the error based on the theory of data fusion. The model can be used to eliminate the problem of instability in Cross-locating error effectively. The result of simulation shows that this model can expand the detect range and enhance the precision of the Net-radar.