Geographic mapping and effective environmental monitoring are realized through the identification of geospatial elements ,and the identification method of geospatial elements based on lidar and remote sensing data is pro- posed. The remote sensing monitoring method of laser radar to realize the geospatial characteristics ,according to the texture of geographic spatial mapping object ,shape ,spatial relationship ,using remote sensing data fusion and spatial information expression method to realize the characteristics of geospatial elements ,build geospatial element identifica- tion of remote sensing expert database. The simulation results show that the decision integration of geospatial element i- dentification is good. The method also achieves land benefits With the detection of natural feature changes ,the maxi- mum value of the recognition accuracy can reach 0. 925 ,and the recognition time is always below 2. 5 s.