To provide a dental photopolymerizable composition which can prepare a dental restoration with excellent aesthetic and mechanical properties by optical three-dimensional modeling method (stereolithography). The dental photopolymerizable composition for 3D printer of the present invention comprises: a (a) (meth)acrylate-based polymerizable monomer consisting of a (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and a (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure, a (b) cohesive inorganic filler, and a (c) photopolymerization initiator, wherein; a ratio of the (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and the (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure in the (a) (meth)acrylate-based polymerizable monomer is 51 to 80: 49 to 20 pts.wt., a ratio of the (a) (meth)acrylate-based polymerizable monomer and the (b) cohesive inorganic filler is 50 to 91: 50 to 9 pts.wt., and the dental photopolymerizable composition for 3D printer contains 0.1 to 5 pts.wt. of the (c) photopolymerization initiator based on 100 pts.wt. of the (a) (meth)acrylate-based polymerizable monomer.