The invention relates to a resource utilization method of chlorofluorocarbons. Halogenated ethane is adopted as a raw material, and is reacted with an alcohol under different catalyst conditions at a certain temperature in a certain material ratio and then fluorinated to prepare hydrofluoroether. The raw material can also be reacted with hydrogen under different catalyst conditions at a certain temperature in a certain material ratio to prepare difluorochloroethane or difluoroethane. The method provides novel methods and ideas for downstream product development of the chlorofluorocarbons, avoids separation and process problems of fluorochloroethylenes such as trifluoroethylene and difluorochloroethylene, and produces products having certain market and economic value, such as the difluorochloroethane and the hydrofluoroether, by utilizing addition, hydrogenation, and other reactions. The method has potential utilization value and is of great industrial application significance. The method effectively prolongs service lifetime of catalysts, effectively utilizes intermediates such as the difluorochloroethylene, and is simple and efficient.