A linear light apparatus includes a light strip, a light passing cover, a main bracket, a bottom holder and a metal clip. The light strip having an elongated substrate mounted with LED modules. The main bracket holds the light strip for the LED modules emitting a light passing through the light passing cover. The metal clip has a first thorn and a second thorn. The metal clip is pressed to one side wall for the first thorn to stab a second insulation layer to electrically connect the bottom holder and the metal clip. The second thorn stabs a first insulation layer for the metal clip to be electrically connect to the first metal part of the main bracket.