Abstract: By using the total station, the surveyors can carry out three-dimension lead forestry surveying, the tree position can be surveyed and calculated by dominate point coordinate, the tree and forestry resources can also be distributed and mapped. By using automatic surveying and calculating diameter at breast or any other stem diameter, tree’s height and mathematics’models, the stem volume can be calculated. By using the total station automatic surveying and calculating, forestry data can be obtained, which not only enhances the speed, ac curacy and efficiency, but also supply data source for forestry digital mapping and GIS analysis.