Application background PLY file format and its parsing Ply file format is a set of 3D mesh model data format, Stanford university development of data format, many famous model data, such as Stanford Happy [1] (Buddha Dragon, UNC, Bunny, [3]), Tech Geogia power plant model [4], etc., the initial model is based on this format. PLY file format specification and its source code is open, a lot of code. Key Technology Using C++ language to use OpenGL to read and display the PLY file is good for PLY reading and OpenGL learning, but also can learn from some of the methods, the need for the platform OPENGL environment configuration