The invention relates to a photo-curing nail gel compositions comprising a polyurethane (meth)acrylate resin with resin elongation rate of 200% to 700%, a diluent, a photo initiator, a surface curing accelerating agent and a filler. The diluent includes a monofunctional monomer, a difunctional monomer and a trifunctional monomer. The photo initiator performs the photo-initiation reaction of the composition. The surface curing accelerating agent includes a tertiary amine acrylic resin or a thiol resin. A content of the polyurethane (meth)acrylate resin is 50 wt% to 80wt%, contents of the monofunctional monomer, the difunctional monomer and the trifunctional monomer are respectively 1 wt% to 30 wt%, a content of the photo initiator is 1 wt% to 10 wt%, a content of the surface curing accelerating agent is 1 wt% to 10 wt% and a content of the filler is 1 wt% to 10 wt%, based on a total weight of the photo-curing nail gel composition.本發明提供一種光固化甲油膠組成物，包括樹脂延展率為200%至700%的聚氨酯(甲基)丙烯酸酯樹脂、稀釋劑、光起始劑、表面固化促進劑及填充劑。稀釋劑包括單官能單體、雙官能單體及三官能單體。光起始劑使光固化甲油膠組成物進行光起始反應。表面固化促進劑包括三級胺壓克力樹脂或硫醇樹脂。以光固化甲油膠組成物的總重量計，聚氨酯(甲基)丙烯酸酯樹脂的含量為50 wt%至80 wt%，單官能單體、雙官能單體及三官能單體的含量分別為1 wt%至30 wt%，光起始劑的含量為1 wt%至10 wt%，表面固化促進劑的含量為1 wt%至10 wt%，填充劑的含量為1 wt%至10 wt%。
