A light-reflecting microstructure, characterized in comprising: a transparent structure, the transparent structure comprising a light incident surface, a light-reflecting surface, and a light-absorption surface connecting the light incident surface and the light-reflecting surface; a light-absorption structure located on the light-absorption surface; and a reflection layer located on the light-reflecting surface, wherein the transparent structure is configured to refract projected light incident on the light incident surface at a preset angle to the reflection layer, and refract stray light incident on the light incident surface at another angle to the light-absorption structure, the reflection layer is configured to reflect the projected light in such a manner that the projected light is emitted at a certain angle from the light incident surface after being refracted twice by the transparent structure, and the light-absorption structure is configured to absorb the stray light; and wherein the transparent structure comprises a first portion and a second portion located at a top of the first portion, the first portion is a structure having a cross section being an inverted trapezoid, and the second portion is a structure having a bottom surface being a planar surface and a top surface being a curved surface; and the top surface of the second portion is the light incident surface of the transparent structure, a bottom surface of the first portion is the light-reflecting surface of the transparent structure, and a side surface of the first portion is the light-absorption surface of the transparent structure. a transparent structure, the transparent structure comprising a light incident surface, a light-reflecting surface, and a light-absorption surface connecting the light incident surface and the light-reflecting surface; a light-absorption structure located on the light-absorption surface; and a reflection layer located on the light-reflecting surface, wherein the transparent structure is configured to refract projected light incident on the light incident surface at a preset angle to the reflection layer, and refract stray light incident on the light incident surface at another angle to the light-absorption structure, the reflection layer is configured to reflect the projected light in such a manner that the projected light is emitted at a certain angle from the light incident surface after being refracted twice by the transparent structure, and the light-absorption structure is configured to absorb the stray light; and wherein the transparent structure comprises a first portion and a second portion located at a top of the first portion, the first portion is a structure having a cross section being an inverted trapezoid, and the second portion is a structure having a bottom surface being a planar surface and a top surface being a curved surface; and the top surface of the second portion is the light incident surface of the transparent structure, a bottom surface of the first portion is the light-reflecting surface of the transparent structure, and a side surface of the first portion is the light-absorption surface of the transparent structure.