The invention relates to a high-resolution large-fov (field of view) zoom projection lens. An optical system lens group comprises a front compensation lens group, a variable-magnification lens group, a rear compensation lens group and a rear fixed lens group which are arrayed in sequence along the optical axis from a screen to an image plane DMD (digital micro-mirror device) chip; the variable-magnification lens group is the positive focal-length group component; the front compensation lens group and the rear compensation lens group are the negative focal-length group components; the rear fixed lens group is the positive focal-length group component; the front compensation lens group comprises three lenses; the variable-magnification lens group comprises two lenses; the rear compensation lens group comprises two lenses; the rear fixed lens group comprises six lenses; and the rear fixed lens group is provided with a diaphragm. The focal power of each lens group is distributed reasonably, and the high-resolution large-fov zoom projection lens has a compact structure, a large fov, a high resolution and a good image forming effect, can achieve a significant effect when being used for projecting images on a 2-4k DMD chip based large screen, adopts the materials being easy to process and is suitable for bath production.