Abstract: Using the mine software Surpac to set up the geological database, the 3D model of orebody and the block model of orebody, the visualization is realized for the three dimensional models of surface, fault, stratum, and orebody. The data of borehole samples are combined and analyzed according to geological data. Through the three-dimensional variogram calculation and fitting, a variogram model is constructed. All information on the effective structure is summarized quantitatively. The ordinary Krigemethod and the distance power inverse ratio-method are used to analyze and estimate the orebody grade and reserves. The evaluation results of these two methods are analyzed and compared with the calculation results of the traditional geological block method. It is shown that the mine surface and the underground geological structure of the spatial relations and relevant ore-rock information can be completely and accurately displayed by the visualization of three dimensional models. At the same time an effective basis can be provided for the deposit exploitation and dynamic management of production. The 3D model established for the deposit and the estimation method of grade and reserves measurement is reliable and useful for the study of reserve estimation. It not only helps the development of traditional mining methods, but also plays an important role in the digitized process of the mine enterprises in China.