A vehicle lamp illumination module, comprising light sources, a low-beam primary optical element, a high-beam primary optical element and a secondary optical element, the low-beam primary optical element is configured to guide light to be sequentially emitted via the low-beam primary optical element and the secondary optical element to form a low-beam shape, the high-beam primary optical element comprises multiple collimation units arranged in a row in horizontal direction, the surfaces of light emitting ends of the collimation units are connected to each other or integrally formed to form a high-beam light emitting surface, and light incident ends of the collimation units have one-to-one correspondence to the light sources, so that the light can be sequentially emitted via the high-beam primary optical element and the secondary optical element to form a high-beam shape; the low-beam primary optical element comprises a low-beam light incident surface, a low-beam light guide portion and a low-beam light emitting surface, the low-beam light guide portion is configured to guide light received by the low-beam light incident surface to be emitted to the low-beam light emitting surface, a reflection portion is formed on the lower surface of the low-beam light guide portion, multiple light condensing structures which are sequentially arranged in horizontal direction and have one-to-one correspondence to the light sources are mounted on the low-beam light incident surface, and a low-beam cut-off portion used for forming a low-beam shape cut-off line is formed on the low-beam primary optical element; the lower edge of the low-beam light emitting surface of the low-beam primary optical element is connected with the upper edge of the high-beam light emitting surface of the high-beam primary optical element, and a wedge-shaped gap which is gradually increased from front to rear is formed between the low-beam primary optical element and the high-beam primary optical element; each of the collimation unit comprises a light incident end, a light passing portion and a light emitting end, characterized in that, the light passing portion of a collimation unit located in a middle portion of the row of the collimation units is connected with two light incident ends in the up-down direction. the low-beam primary optical element comprises a low-beam light incident surface, a low-beam light guide portion and a low-beam light emitting surface, the low-beam light guide portion is configured to guide light received by the low-beam light incident surface to be emitted to the low-beam light emitting surface, a reflection portion is formed on the lower surface of the low-beam light guide portion, multiple light condensing structures which are sequentially arranged in horizontal direction and have one-to-one correspondence to the light sources are mounted on the low-beam light incident surface, and a low-beam cut-off portion used for forming a low-beam shape cut-off line is formed on the low-beam primary optical element; the lower edge of the low-beam light emitting surface of the low-beam primary optical element is connected with the upper edge of the high-beam light emitting surface of the high-beam primary optical element, and a wedge-shaped gap which is gradually increased from front to rear is formed between the low-beam primary optical element and the high-beam primary optical element; each of the collimation unit comprises a light incident end, a light passing portion and a light emitting end, characterized in that, the light passing portion of a collimation unit located in a middle portion of the row of the collimation units is connected with two light incident ends in the up-down direction.