Abstract: A hot/cold dual-mode skin treatment apparatus includes a housing holding a skin treatment solution in a water trough therein, a barrel mounted in a vertical through hole on the housing, an atomizer mounted in the water trough and controlled to oscillate the skin treatment solution into a fine spray of skin treatment solution. A fan and an air duct connected between the fan and the bottom end of the barrel for guiding currents of air from the fan to the barrel to carry the fine spray of skin treatment solution out of the housing. A spray nozzle assembly is mounted in the barrel on the housing to guide out the fine spray of skin treatment solution, and electrical heater is mounted in the spray nozzle assembly and controlled to heat the fine spray of skin treatment solution into steam.