The invention relates to the technical field of audio equipment mounting and fixing, in particular to a wall-mounted support of audio output equipment. The wall-mounted support comprises a fixed side plate mounted on a wall. A left strip-shaped bolt fixing opening and a right strip-shaped bolt fixing opening which are parallel are formed in the front face of the fixed side plate. According to the wall-mounted support of the audio output equipment, overturning grooves with overturning plates being arranged inside are formed in the fixed side plate, and the overturning plates can complete overturning and rotating actions at the upper end and the lower end of the fixed side plate through matching of rotary shafts on the overturning grooves and hinge mechanisms on the overturning plates, so that the storage size of the whole support is greatly reduced, and packing, storing and transporting are facilitated; and the demand for the wall area is greatly lowered, the cost and mounting difficulty are reduced, the wall-mounted support can be suitable for equipment of various specifications through the multiple overturning plates, and application is more extensive.