This project aims to develop a new type of rapidly curable photosensitive resin for 3D printing that can be excited by ultraviolet to visible light (tentatively named: 3DTongji-n). The resin mainly consists of two parts: photoinitiators and photopolymerizable monomers. Our research group has been focusing on the development of UV-visible sensitive photoinitiators in recent years. The photoinitiator used in this resin will adopt highly active small molecule photoinitiators or inorganic nanoparticles coated with multifunctional photoinitiators, whose basic structure is nanometer-sized silicon dioxide particles surface-grafted with photoinitiators that can initiate both free radical polymerization and cationic polymerization. These particles can play the role of the substrate while initiating polymerization, similar to using red bricks to build houses, where the surface-grafted initiator acts like cement mortar, and the polymerizable monomer acts like concrete. It is planned to use commercialized various multi-functionality free radical and cationic resins. And by adjusting various parameters of the resin, it is achieved to apply it in photoresist 3D printing. The goal of this research is to improve the curing properties of the photoresist, mainly increasing the curing speed, and also including the photoresist's transmission depth, critical exposure amount, viscosity, cure shrinkage rate, tensile strength, elastic modulus, elongation at break, glass transition temperature of the cured product, etc., to meet practical requirements for use in the production of 3D light-curing devices. Currently, imported photoresists from American companies DSMSOMOS and Huntsman can cost over 1400 RMB per kilogram. Therefore, it is very necessary to conduct research on the photoresist for 3D printing and make it domestically produced for economic benefits. The development of this photoresist will play a positive role in promoting the further advancement of domestic light-curing 3D printing technology.