A light source module, comprising a light source array and a lens array corresponding to the light source array to converge and collimate the output light of each light source, and further comprising: a focusing lens covering a partial area of the light source array and the lens array; and a reflector array located between the focusing lens and the lens array, the reflector array including multiple reflectors or multiple reflectors and polarization filters, wherein at least two reflectors or at least one reflector and one polarization filter are located on an output beam path of each light source of the light source array that is not covered by the focusing lens, wherein the light beam emitted by the light source and located farther from the optical axis of the focusing lens is closer, after being reflected for the second time, than at least one light beam emitted by the light source and located closer to the optical axis of the focusing lens, after being reflected for the second time or not being reflected, to the optical axis of the focusing lens; wherein light beams from different output beam paths are parallel through the reflector array which are then focused by the focusing lens; wherein in one row or one column of the light source array, the focusing lens covers a single light source located in a center area or two adjacent light sources; wherein when the reflector array includes multiple reflectors and polarization filters, at least one reflector and one polarization filter are located on the output beam path of each of the light sources that is not covered by the focusing lens; wherein the polarizing filters respectively located on the output beam paths of all of the light sources not covered by the focusing lens are the same polarizing filters; characterized in that only one reflector is located on the output beam path of each light source located on one side of the optical axis of the focusing lens, and two reflectors are located on the output beam path of each light source located on another side of the optical axis of the focusing lens. a focusing lens covering a partial area of the light source array and the lens array; and a reflector array located between the focusing lens and the lens array, the reflector array including multiple reflectors or multiple reflectors and polarization filters, wherein at least two reflectors or at least one reflector and one polarization filter are located on an output beam path of each light source of the light source array that is not covered by the focusing lens, wherein the light beam emitted by the light source and located farther from the optical axis of the focusing lens is closer, after being reflected for the second time, than at least one light beam emitted by the light source and located closer to the optical axis of the focusing lens, after being reflected for the second time or not being reflected, to the optical axis of the focusing lens; wherein light beams from different output beam paths are parallel through the reflector array which are then focused by the focusing lens; wherein in one row or one column of the light source array, the focusing lens covers a single light source located in a center area or two adjacent light sources; wherein when the reflector array includes multiple reflectors and polarization filters, at least one reflector and one polarization filter are located on the output beam path of each of the light sources that is not covered by the focusing lens; wherein the polarizing filters respectively located on the output beam paths of all of the light sources not covered by the focusing lens are the same polarizing filters; characterized in that only one reflector is located on the output beam path of each light source located on one side of the optical axis of the focusing lens, and two reflectors are located on the output beam path of each light source located on another side of the optical axis of the focusing lens.