The invention relates to an indoor wall face plate installing component. The overlook cross section of the installing component is in a shape that a screw hole bottom plate extends from the right side of the head part of a part in a shape like a Chinese character 'fan'; a plurality of screw holes are formed in the screw hole bottom plate; a left face plate of the installing component extends to a left side foot; a right face plate extends to a right side foot; the left face plate and the screw hole bottom plate realize right-angle bending integral fixed connection through a left vertical plate; the right face plate and the screw hole bottom plate realize right-angle bending integral fixed connection through a right vertical plate; a middle hole post provided with a plurality of regularly arranged through grooves and round holes is arranged in the middle between the left vertical plate and the right vertical plate for connection reinforcement; and the middle hole post, the left vertical plate, the right vertical plate and the screw hole bottom plate form a vertical hole.