Abstract: An illumination structure with multiple light sources in projector has first, second, third integration rods, first and second light sources. The second integration rod having a light incident surface, a light outgoing surface and a light reflection surface, is placed along the first integration rod. The light incident surface is parallel to the second integration rod, forming an angle between the light incident surface and light reflection surface. The first light source is vertically placed with respect to the second light source. The light emitted from the first light source is focused to the light incident surface of the first integration rod. The light emitted from the second light source is incident to the light incident surface of the second integration rod, and then reflected by the light reflection surface. The light reflected by the light reflection surface propagates forward the light outgoing surface of the second integration rod.