The laser beam has high directionality, which results in a mismatch between the spatial intensity distribution of blue and yellow lights produced by its excitation of phosphor, and leads to poor CCT uniformity. To address this issue, we propose a laser-diode-based white light source incorporating a microlens array-homogenized microstructure phosphor system (MLA-HMPS). It achieves uniform mixing of blue and yellow light by changing the spatial intensity distribution of the blue light. The experimental results show that the CCT deviation of a white light source with the proposed MLA-HMPS is 630 K. Compared with corresponding deviations with a direct laser planar phosphor system and microlens array homogenized planar phosphor system, this value is lower by 10 170 and 1 070 K, respectively. The white light source exhibits a luminous flux of 1 458 lm, an efficiency of 138 lm/W, a CCT of 5 226 K, and a color rendering index of 71.1, thereby meeting the application requirements of automotive headlights.