Panoramic image technology made research by many specialists has become a research focus in certain area such as computer visual, computer graphics, virtual reality and so on because of being applied widely. Based on projection algorithm dealing with panoramic image, this paper introduced core transform matrix involved in plane transformation and the working context and prince of it, analyzed various curved surface transformation methods in detail, for example projection algorithm and an improved algorithm of it involved in cylindrical panoramic technology, conventional algorithm and block algorithm and conversion algorithm of complete directed graph referring to spherical panorama, probed deeply into traditional algorithm and two-dimensional texture algorithm and stereoscopic projector relating to cube panorama, prospected development trend of the projection algorithm involved in panoramic image technology.