A method for preventing electrochemical corrosion of a clothes care machine heater (1). A clothes care machine comprises a steam generator (50) and an output power supply (21). The steam generator (50) is used for generating steam. The output power supply (21) is used for providing a protection current to the steam generator (50). The steam generator (50) comprises a heater (1). The method comprises: installing an electric conductor (22) on the steam generator (50), the electric conductor (22) being in electrical insulation with the heater (1), electrically connecting the heater (1) to a cathode of the output power supply (21), electrically connecting an anode of the output power supply (21) to the electric conductor (22), so that the electric conductor (22) contacts with water in the steam generator (50), to form a current loop, and compensating for electrons lost in the heater (1), to prevent the heater (1) from being corroded due to an electron loss. Further disclosed are a device (10) for preventing elect
