At present, there are two problems including insufficient known information and single constraining method for the inverting methods of magnetic intensity. Therefore between the integrated dual restraining methods of the relative probability imaging of the presented magnetic intensity and the characteristic constraint of the potential field based on the drilling are emphasizedly improved in the scanning function of the probability imaging. At the same time, the restraint expansion program characterized by qualitative and quantitative integration is presented. Through the comparison between the new and old inverting methods of the inversion model, the correctness and practicability of the method are proven with the help of the actual processed data.