The application relates to a multifunctional support for assembled decoration outer wall, which is used for being installed on the outer facade of a building and comprises a first support, a first photovoltaic panel, a second support and a second photovoltaic panel, the first support is used for being connected to the outer facade, the first photovoltaic panel is arranged on the first support and can be arranged opposite to a window on the outer facade, the light
transmittance of the first photovoltaic panel is greater than or equal to 40%, the second support is used for being connected to the outer facade and is located below the first support, the second support has a containing space, and the second photovoltaic panel is arranged on the side of the second support away from the outer facade. The first photovoltaic panel is installed on the first support, the second photovoltaic panel is installed on the second support, the first photovoltaic panel and the second photovoltaic panel synchronously generate
electricity, the laying area of the outer facade of the building is further increased, and the
solar energy collection potential of the outer facade of the building is exerted.