This paper introduces a modeling method of geological body based on borehole point of mine. This method relies on computer software for processing and analysis. Through statistics and classification of borehole data, parameters such as thickness, dip Angle and lithology of underground strata can be obtained, and then 3D geological body model can be established according to these parameters. The model can reflect the spatial distribution, interrelationships and physical properties of underground rock strata, providing a visual tool for mine engineers to help them more accurately determine mineral reserves and select the best mining plan. At the same time, in order to ensure the subsequent development and management of the mine, a dynamic point based adjustment method is constructed, which can adjust the model in real time according to the ore points in the mining process to ensure the accuracy of the model.