A light-conductive panel of side-light type backlight module is disclosed. The reflective plane of the light-conductive panel is formed with a plurality of light conductors, and one lateral side of the conductor is formed with an auxiliary light conductor which is formed along the light conductor. The leak light source which can be led into the light-conductive panel from the light conductor can be connected by the matching auxiliary light conductor such that the leaked light source can be further led to the interior of the light conductive panel so that the chance of the leaked light source on the reflective plate is reduced, which will reduce the light energy exhaustion caused by the light source being fallen onto the reflective plate.