As an important organic chemical material and monomer for producing epoxy resin, epichlorohydrin is industrially derived from the saponification cyclization of dichloropropanol in a tower reacting system. In order to separate product away speedy and effectively to depress energy consumption and wastewater discharge amount, tubular reactor coupling with thin film evaporation was designed as a new process for producing epichlorohydrin. The influence of different technical factors of the coupling process including reactants’ molar ratio, NaOH solution concentration, reaction temperature, tubular residence time, thin film evaporation temperature and thin film evaporation pressure on yield were investigated. It turned out that at conditions when n(NaOH): n(DCP) = 1.05:1, NaOH solution concentration at 20%(wt.), reaction temperature at 50℃, tubular residence time at 15s, thin film evaporation temperature at 50℃, thin film evaporation pressure at 100mbar, the yield of epichlorohydyin reached 97.3%. The coupling process of tubular reaction and thin film evaporation was improved in its lower material consumption, shorter reacting time and higher product yield. Comparing with tubular reactor - rectification coupling process, this process was superior for its better operation flexibility, higher product yield, lower energy consumption and lesser wastewater discharge.