The synthetic route of glycidyl nitrate(GN) was improved. Glycidol was synthesized by the cyclization process from allyl alcohol and m-CPBA, then glycidyl nitrate was synthesized with glycidol as raw materials and HNO₃/(AcO) ₂O as nitrating agent. Results show that the yield of GN is 70.2%, and after vacuum distillation, the purity of GN is 98.9%. The product was characterized by IR, ¹H NMR and elemental analysis. The optimal nitration conditions are as follows: the molar ratio of HNO₃/GA is 1.5:1.0, reaction temperature is -10 ℃, and reaction is quenched when addition is finished.