Abstract: Disclosed is a highly transparent and long-release dental resin composition containing core-shell porous structured nanoparticles and a method for preparing the same. More specifically, disclosed is a pigment-free and dye-free photocurable dental resin composition containing nanoparticles, which contains a core portion with an oral active ingredient and a porous ceramic shell portion coated on a part or all of a surface of the core portion, and a method for producing the same. The dental resin composition according to the present disclosure has excellent color compatibility with natural teeth and releases an oral active ingredient contained in a porous structure for a long period of time, and thus, the dental resin composition may be used as an aesthetic/medical multifunctional complex composition.