Roofing lighting board with diversion function

The invention discloses a roofing lighting board with the diversion function. The roofing lighting board includes a lighting board body, wherein the lighting board body is the wave shape, the diameterof the peak of the lighting board body is five times the diameter of the trough, the diameter of the trough of the lighting board body gradually decreases along the length direction, both sides of the lighting board body are set to be inverted V-shaped hooks, and the inverted V-shaped hooks are adjacent to the trough of the lighting board body. The roofing lighting board is advantaged in that thediameter of the peak of the lighting board body is five times the diameter of the trough, the trough can be used as a guide trough, through setting the trough as a structure whose diameter graduallydecreases along the length direction thereof, water accumulation or debris accumulation at the trough is not easy to occur, the both sides of the lighting board are set to be the inverted V-shaped hooks, water leakage of the li