Abstract: As one of the rapid prototyping technology, 3D printing technology is developing rapidly in recent years, and photo-curing 3D printing technology and photosensitive resin are the most mature parts of the 3D printing technology. The ingredient of photosensitive resin and the function of each ingredient were introduced, several kinds of photo-curing technologies were sketched, and the research progress and application of photosensitive resin and the photo-curing 3D printing technology were summarized. Finally, it was pointed out that the photo-curing 3D printing technology is developing rapidly in the direction of material diversification, high precision and high rate.