Abstract: A light integration rod module includes a holder, a light integration rod disposed in an accommodation space of the holder, a bracket set supporting the holder and the light integration rod, and an adjusting unit adjusting the relative positions of the holder and the bracket set and including a first adjusting element, a second adjusting element and an elastic element. The first and second adjusting elements are disposed through the bracket set and pushing the holder to adjust the relative positions of the holder and the bracket set along a first and a second axis directions respectively. Both ends of the elastic element are respectively connected to the bracket set and the holder and providing the holder with a pull force towards the bracket set. The direction of the pull force is different from the first and second axis directions.