Years of high intensity metal mining would lead to a heavy metal enrichment in soil in the mining area. Combining the remotely sensed data and the 3D laser detection data, a 3D geo-model is generated. 367 sampling points are reasonablly arranged, the safety risks of Cd, As, Cu, Zn and Pb are analyzed. The experimental results indicate that with the heavy metal serious enrichment in soil in mining area, the contents of Zn and Pb are very high. The coefficient of variation sees a large difference, the Cs of Cd, As, Cu, Zn and Pb are in the normal distribution. The indexes of the pollution are all in Ⅴ category. The influence factors are in the following order: Cd>Pb>Zn>As>Cu. The potential ecological risk index RI is 787.29, the HQ of Cu, Zn and Pb are less than 1, but Cd and As may have a high health risk (especially As). The visual expression of the risk in the 3D model is realized, providing an intuitive decision-making basis for the safe production management in the mine area.

mining area  /  geo-model  /  soil  /  heavy metal pollution  /  risk measure