A new definition of geographical gridding and its code is presented aiming at network warfare. Data of various radars are fused by using a method of grey incidence, which can be used to diminish the measuring error caused by jam and other random factors. This method can make the target information more unified and accurate, and at the same time the anti-jam ability of the radar is enhanced in the sense of data processing. At last, an example is given to validate the feasibility and validity of this method.