The invention discloses a dodging structure and a dodging system. The dodging structure comprises a dodging substrate, wherein the dodging substrate comprises a substrate body, a first pattern structure arranged at any surface of the substrate body, and a reflection layer arranged at one side of any surface of the dodging substrate, wherein the first pattern structure comprises multiple micro structures used for dodging incident light beams irradiated on the surface, and a reflection face of the reflection layer faces towards the dodging substrate. The any surface of the dodging substrate is provided with the reflection layer, when the incident light beam irradiates one side surface of the dodging substrate having no reflection layer, part of the light is reflected by the surface, the part light flows into the surface of the reflection layer and then is reflected out of the dodging substrate, and the light beams is the light beams after secondary reflection after being dodged by the dodging structure. Through the structure, the incident Gauss distribution light beams are shaped into flat-topped distribution light beams, the light beam diffusion angle is small, light beam collection is facilitated, and requirements of small volume and light mass for a display system are satisfied.