A light source module includes a plurality of light combining elements, a plurality of first light emitting elements, and a plurality of second light emitting elements. Each of the light combining elements has a first reflecting surface and a second reflecting surface. Each of the first light emitting elements emits a first illuminating beam, and one of the first reflecting surfaces reflects the first illuminating beam to be transmitted along a light combining direction. Orthographic projections of the light combining elements on a reference plane are connected in sequence, and the reference plane is perpendicular to the light combining direction. Each of the second light emitting elements emits a second illuminating beam, and one of the second reflecting surfaces reflects the second illuminating beam to be transmitted along the light combining direction. In addition, a projector having the light source module is also provided.