In the process of drilling, the visualization of well track is convenient to observe, and then be helpful to design and control well tracks, also, it’s good to develop program and oil-field development. In this paper, Visual C++2005 and Open Inventor development kit were combined, and on the bases of read surveying datum, minimum curvature method was adopted to implement the visualization of well track. Axis and flats are supplementary measures to offer convenient examination and using. Open Inventor is a development kit which is based on OpenGL, and has powerful functions in 3D graphic processing and interaction. Therefore, Open Inventor will be full used in the future of the visualization of drilling engineering.