Abstract: Land remediation is one of important measures to improve quality of cultivated land and realize better protection.As a comprehensive technology，geographic information technology is an important tool to realize land remediation work efficiently and intelligently.Current geographic information technology in land remediation was analyzed.Application of 3S（RS，GIS，GPS）in land remediation was described.Application of 3S technology in land remediation project reconnaissance stage，feasibility study stage，planning and design stage，project implementation stage，and later stage of pipeline protection were described in detail.At last，land consolidation information system was put forward，and 3D analysis function and visualization technology would be better applied on land remediation.