A processing device for forming wrapping layers on the powder/particulate objects provided by this invention is used for making carbohydrate as wrapping objects wrapped on the surface of the powder/particulate objects to be wrapped, comprising a working space for receiving the wrapping objects and the powder/particulate objects to be wrapped a gaseous water supply unit for guiding gaseous water of exterior to enter into the working space, so as to increase the humidity in the working space enabling the wrapping objects to perform hydration reaction with water in the working space, thereby forming wrapping layers on the surfaces of the powder/particulate objects to be wrapped a drying part for drying the wrapping layers formed on the surfaces of the powder/particulate objects to be wrapped and a stirring part for providing stirring action, making the wrapping objects and the powder/particulate objects to be wrapped fully contacted mutually in the working space.本發明所提供用以對粉/粒狀物體表面形成包覆層之加工裝置,乃係用以使作為包覆物之醣類包裹於待包覆之粉/粒狀物體表面,其乃係包含了有一工作空間,用以容納該包覆物及該待包覆之粉/粒狀物體;一氣態水供給部,用以導引外部之氣態水進入該工作空間中,以提高該工作空間中之濕度,使該包覆物於該工作空間中與水進行水合反應以於該待包覆之粉/粒狀物體表面形成包覆層;一乾燥部,用以乾燥形成於該待包覆之粉/粒狀物體之包覆層;一攪拌部,用以提供一攪拌作用,使該包覆物及該待包覆之粉/粒狀物體於該工作空間中彼此充分接觸。(10)‧‧‧用以對粉/粒狀物體表面形成包覆層之加工裝置(20)‧‧‧身部(21)‧‧‧本體(22)‧‧‧工作空間(23)‧‧‧網層(30)‧‧‧氣態水供給部(31)‧‧‧氣態水產生器(32)‧‧‧第一連接管(40)‧‧‧乾燥部(41)‧‧‧熱能產生器(42)‧‧‧第二連接管