The invention discloses a novel installation assembly of a wall-hung liquid crystal display television. The novel installation assembly comprises an installation frame body (8) installed inside a wall body (1) and used for fastening the liquid crystal display television (9); two elastic fixing plates (91) in longitudinal symmetry are fixedly arranged on the back side of the liquid crystal display television (9) through vacuum suction cups (98), and each elastic fixing plate (91) is provided with two conical insertion holes and a bent protruding platform part (911) located between the two conical insertion holes; and the installation frame body (8) comprises an upper side wall (61), a lower side wall (62) and a connecting wall (63) connected to the upper side wall (61) and the lower side wall (62), and each of the upper side wall (61) and the lower side wall (62) is provided with two conical protrusions (69) which extend towards a cavity (60) of the installation frame body (8) and are arranged in the front-back direction.