A near-to-eye display optical system (100, 200), comprising: a display assembly configured to emit light rays having image information; an optical filter configured to transmit the light rays whose emergent angles meet a preset transmission condition and shield the light rays whose emergent angles do not meet the preset transmission condition; a first optical assembly configured to receive and reflect the light rays transmitted through the optical filter, wherein the optical filter is disposed between the display assembly and the first optical assembly; and a second optical assembly configured to receive the light rays reflected by the first optical assembly and reflect the light rays to the first optical assembly, wherein the light rays reflected by the second optical assembly pass through the first optical assembly to form an image on a focal plane of the near-to-eye display optical system (100, 200); the optical filter comprises an optical sub-filter (61, 62) configured to transmit the light rays whose emergent angles meet the preset transmission condition, and the optical sub-filter (61, 62) comprises a plurality of transparent layers and a plurality of light shielding layers stacked in a first direction; the plurality of transparent layers and the plurality of light shielding layers are mutually connected, one light shielding layer is disposed between adjacent two of the plurality of transparent layers, and one transparent layer is disposed between adj acent two of the plurality of light shielding layers; and the plurality of transparent layers is configured to transmit the light rays whose emergent angles meet the preset transmission condition, the plurality of light shielding layers is configured to shield the light rays comprising first light rays, and the first light rays are the light rays whose emergent angles do not meet the preset transmission condition; characterized in that the plurality of transparent layers and the plurality of light shielding layers are stacked on each other and form a first optical filter part and two second optical filter parts; the first optical filter part is in a middle, and each of two sides of the first optical filter part is provided with one second optical filter part; and the first optical filter part and the second optical filter part are connected with each other, the plurality of light shielding layers in the first optical filter part are parallel to a second direction, and the first direction is perpendicular to the second direction. a display assembly configured to emit light rays having image information; an optical filter configured to transmit the light rays whose emergent angles meet a preset transmission condition and shield the light rays whose emergent angles do not meet the preset transmission condition; a first optical assembly configured to receive and reflect the light rays transmitted through the optical filter, wherein the optical filter is disposed between the display assembly and the first optical assembly; and a second optical assembly configured to receive the light rays reflected by the first optical assembly and reflect the light rays to the first optical assembly, wherein the light rays reflected by the second optical assembly pass through the first optical assembly to form an image on a focal plane of the near-to-eye display optical system (100, 200); the optical filter comprises an optical sub-filter (61, 62) configured to transmit the light rays whose emergent angles meet the preset transmission condition, and the optical sub-filter (61, 62) comprises a plurality of transparent layers and a plurality of light shielding layers stacked in a first direction; the plurality of transparent layers and the plurality of light shielding layers are mutually connected, one light shielding layer is disposed between adjacent two of the plurality of transparent layers, and one transparent layer is disposed between adj acent two of the plurality of light shielding layers; and the plurality of transparent layers is configured to transmit the light rays whose emergent angles meet the preset transmission condition, the plurality of light shielding layers is configured to shield the light rays comprising first light rays, and the first light rays are the light rays whose emergent angles do not meet the preset transmission condition; characterized in that the plurality of transparent layers and the plurality of light shielding layers are stacked on each other and form a first optical filter part and two second optical filter parts; the first optical filter part is in a middle, and each of two sides of the first optical filter part is provided with one second optical filter part; and the first optical filter part and the second optical filter part are connected with each other, the plurality of light shielding layers in the first optical filter part are parallel to a second direction, and the first direction is perpendicular to the second direction.