A wall mount assembly includes a first engagement member and a second engagement member. The first engagement member includes a slide structure and two positioning indentations oppositely disposed relative to the slide structure. The second engagement member includes a slider and two positioning bosses oppositely disposed relative to the slider. The first engagement member and the second engagement member are capable of being correspondingly disposed on an object and a wall. When the slider enters the slide structure from an entrance of the slide structure and is confined to slide relative to the slide structure so as to be blocked at a stop position of the slide structure, the two positioning bosses are embedded in the two positioning indentations respectively so that the object can be fixed on the wall stably. Therefore, the wall mount assembly simplifies the wall-mount operation of the object and provides a stable wall-mount effect.