The invention discloses low-dielectric loss sensitized photosensitive glass and a production method belonging to the technical field of glass production. The photosensitive glass is prepared from the following chemical components in percentage by weight: 63-72wt% of SiO2, 6-12wt% of Li2O, 1-5wt% of Na2O, 3-9wt% of K2O, 2-5wt% of Al2O3, 1-4wt% of ZnO, 0.5-0.9wt% of Sb2O3, 0.02-0.06wt% of Ce2O3, 0.09-0.16wt% of Ag2O, 2-5wt% of B2O3, 0.5-2wt% of BaO and/or 0.5-3wt% of CaO and 1-5wt% of MgO. The production method comprises the steps of material preparation, primary preparation of a mixture, ball-mill mixing, melting, molding and annealing treatment. According to the photosensitive glass, the dielectric coefficient at a room temperature or above 1MHz is 4.2-5.6 and the dielectric loss is 2*10<-3> to 4*10<-3>. The low-dielectric loss sensitized photosensitive glass has the characteristics that the strength and the photochemical stability of a glass body of the un-sensitized part are high, the dielectric coefficient and the dielectric loss during high-frequency working are low, the stability during working is high, the etching depth-to-width ratio of the sensitized glass is high and the production process is simple and convenient.