ISP geological measurement system is through geophysical data acquisition, data processing, image generation to forecast the geological structure of about 100m in front of the TBM cutter head (fault, joint, fracture zone, karst cave, etc.), according to the forecast geological conditions to assist TBM for tunnel boring safety, moreover, the ISP geological measurement report can effectively prevent the occurrence of TBM stuck events during tunnel boring, and provide a reliable basis for TBM tunnel boring methodology.