Optical imaging module, camera module and electronic device

The invention discloses an optical imaging module. The optical imaging module comprises an imaging lens group, a light path turning element and a shading element, the imaging lens group includes at least one optical lens element. The light path turning element is arranged on the image side of the imaging lens group. The light path turning element is provided with a light incident surface, a light emergent surface and at least one optical reflecting surface. The shading element is arranged opposite to the at least one optical reflecting surface of the light path turning element. The shading element comprises a spacing area, and a distance is kept between the spacing area and the light path turning element. The at least one optical reflection surface is an optical total reflection surface, and the optical total reflection surface is used for carrying out total internal reflection on imaging light of the optical imaging module in the light path turning element. An air gap is formed between the spacer region of t