A grille for a car grille includes a frame, a filter net mounted on a side of the frame, and a light emitting device mounted between the frame and the filter net. Thus, the arcuate convex faces of the reflective plate of the light emitting device reflect the light rays firm the light emitting members toward the pattern plate, so that the light rays from the light emitting members are projected onto the pattern plate evenly and smoothly, thereby enhancing the outstanding appearance of the grille when the car is driven at the night.