The invention discloses a micro-display eye lens, a head-mounted eye lens system and head-mounted visual equipment. The micro-display eye lens comprises a first positive lens, a second positive lens and a third negative lens. The first positive lens, the second positive lens and the third negative lens are sequentially arranged along light. The first positive lens is Fresnel lens and is provided with a first surface facing an image space and a second surface protruding towards an object space, and the first surface is a Fresnel face with positive focal power. The second positive lens is provided with a third surface protruding towards the image space and a fourth surface facing the object space, and the fourth surface is a plane. The third negative lens is provided with a fifth surface which is sunken to the object space and a sixth surface which is sunken to the object space. According to the micro-display eye lens, the head-mounted eye lens system and the head-mounted visual equipment, plano-convex lenses of spherical glass, the negative lens of aspherical plastics and the Fresnel lens are adopted, under the condition that the imaging quality of the system is guaranteed, the demands for miniaturization, lightness and large field angles are met.