Luminous decorative assembly for vehicle interior

A luminous decorative assembly for vehicle interior (1) which permits a light-emitting on state, wherein a luminous motif (5), which may be decorative or indicative, is shown, and an off state, wherein it looks like a conventional decorative assembly whose appearance is opaque such that it keeps both the luminous motif and the lighting device concealed. Said luminous decorative assembly comprises a luminous support (2) made up by a lighting device (2.10) which consists in a distributed light source comprising at least one LED (2.2) and a light guide (2.3) and a support (2.1) that supports and connects the assembly to the vehicle interior; and a decorative covering (3) having an opaque appearance which additionally comprises a mask (3.3) that allows the motif to be defined in a sharp manner.