The invention relates to a homogenized incoherent light source device. The device comprises an amplified spontaneous emission light source, a light beam coupling unit and a dodging light guide, wherein the amplified spontaneous emission light source, the light beam coupling unit and the dodging light guide are sequentially arranged in a light beam propagation direction, the light output by the amplified spontaneous emission light source is coupled to an input end face of the dodging light guide due to the arranged position and the arranged orientation, and the ratio of the length to the aperture of the dodging light guide is larger than or equal to a preset ratio, so that the size of the imaging formed by the light output by the amplified spontaneous emission light source at the output endface of the dodging light guide is larger than or equal to two times of the aperture of the dodging light guide. The homogenized incoherent light source device has the advantages of less dependence of beam uniformity on light source pumping uniformity, high utilization efficiency of a pumping light source and good uniformity of output two-dimensional flat-top beams, and is a homogenized incoherent light source with high efficiency-cost ratio and low difficulty in realization.