The green nitrating reaction process of epichlorohydrin (ECH) with dinitrogen pentoxide(N₂O₅) was studied. The effects of catalyst type, reaction temperature, reaction time and solvent on the nitrating process of preparing 3-chloro-1, 2-propylene glycol dinitrate were investigated. Results show that H-ZSM-5 catalyst has good catalytic properties. Under the optimum reaction conditions of H-ZSM-5 as catalyst, dichloromethane as solvent, the reaction temperature 15 ℃, reaction time 6 hours and N₂O₅/ECH molar ratio 1.1:1.0, the conversion of ECH is 100%.The selectivity and yield of 3-chloro-1, 2-propylene glycol dinitrate are 98.0%.