A sanitary washing device comprising: a wash water heating part including a first heater and a second heater; a jetting nozzle jetting the wash water supplied via the wash water heating part; and a controller controlling a power supplied to the first heater and the second heater, wherein a resistance value of the second heater is higher than a resistance value of the first heater, and the wash water heating part is configured to heat wash water supplied from a water supply source by only the first heater and the second heater; the controller is configured to perform an energization control for controlling a total power supplied by switching of energization and non-energization to the first heater and the second heater in a pattern control method, in which a half-wave to a sine wave of the power source is set to be one unit, the energization and non-energization to the first heater and the second heater being controlled in units of half-waves and multiplying the unit of half-waves, characterized in that the controller sets the first heater to full off, and executes the energization control only to the second heater when a required output is within a range of not more than a rated capacity of the second heater, the controller executes the energization control simultaneously to each of the first heater and the second heater when the required output is greater than the rated capacity of the second heater and not more than a rated capacity of the first heater, a total power supplied by switching of energization and non-energization being controlled in the energization control, and the controller sets the first heater to full on, and executes the energization control only to the second heater when the required output is within a range of greater than the rated capacity of the first heater and not more than the total capacity of the rated capacity of the first heater and the rated capacity of the second heater. a wash water heating part including a first heater and a second heater; a jetting nozzle jetting the wash water supplied via the wash water heating part; and a controller controlling a power supplied to the first heater and the second heater, wherein a resistance value of the second heater is higher than a resistance value of the first heater, and the wash water heating part is configured to heat wash water supplied from a water supply source by only the first heater and the second heater; the controller is configured to perform an energization control for controlling a total power supplied by switching of energization and non-energization to the first heater and the second heater in a pattern control method, in which a half-wave to a sine wave of the power source is set to be one unit, the energization and non-energization to the first heater and the second heater being controlled in units of half-waves and multiplying the unit of half-waves, characterized in that the controller sets the first heater to full off, and executes the energization control only to the second heater when a required output is within a range of not more than a rated capacity of the second heater, the controller executes the energization control simultaneously to each of the first heater and the second heater when the required output is greater than the rated capacity of the second heater and not more than a rated capacity of the first heater, a total power supplied by switching of energization and non-energization being controlled in the energization control, and the controller sets the first heater to full on, and executes the energization control only to the second heater when the required output is within a range of greater than the rated capacity of the first heater and not more than the total capacity of the rated capacity of the first heater and the rated capacity of the second heater.