The invention discloses an evaporation device of a carbon-hydrogen washing machine. The evaporation device comprises two or more evaporation plates which are separately arrayed from top to bottom, wherein a cavity is formed in each evaporation plate; the adjacent evaporation plates are fixedly connected through evaporation plate positioning pins; a heat-conducting oil outlet is formed in one end of the top of each evaporation plate, and a heat-conducting oil inlet is formed in one end, opposite to the corresponding heat-conducting oil outlet, of the bottom of each evaporation plate; the heat-conducting oil inlets and the heat-conducting oil outlets are communicated through the cavities in the evaporation plates; the heat-conducting oil inlets and the heat-conducting oil outlets between the adjacent evaporation plates are communicated through a guide pipe. The invention further provides the carbon-hydrogen washing machine including the evaporation device; the evaporation device is arranged at the lower part of an atomizer of an evaporation room of the carbon-hydrogen washing machine; the heat-conducting oil inlets and the heat-conducting oil outlets are communicated with an oil groove of heat-conducting oil through a circulating pump. The evaporation device disclosed by the invention is compact in structure and small in occupied space; when the evaporation device is used for washing the surface of a product, an oil-liquid mixture can be efficiently separated; a washing solvent is cyclically utilized, so that energy sources can be effectively saved.