Photovoltaic household appliance control method and device, controller and photovoltaic air conditioner

The invention discloses a photovoltaic household appliance control method and device, a controller and a photovoltaic air conditioner. A photovoltaic household appliance comprises a household appliance body and a photovoltaic power generation device, and the photovoltaic household appliance control method comprises the steps that the real-time operating power of the household appliance body and the power generation power of the photovoltaic power generation device are obtained; and based on a preset working state of the household appliance body, the operating power is controlled to be matchedwith the power generation power. Under the situation that the preset working state of the household appliance body is met, for example, when a user uses the household appliance body, the operating power of the household appliance is adjusted in the user comfort range so that the operating power of the household appliance body can 'trace' the power generation power of the photovoltaic power generation device, and the match