The invention discloses a camera mounting structure assembly which comprises a thermal insulting box, a vertical fixing portion and an oblique fixing portion. The thermal insulating box is internally provided with a mounting cavity used for accommodating a camera, the outside of the thermal insulating box is provided with a first side surface arranged close to a thermal insulating plate and a second side surface opposite to the first side surface, and an observation hole allowing the camera to penetrate through is formed in the second side surface; one end of the vertical fixing portion extends into the mounting cavity to be connected with the camera, the other end of the vertical fixing portion sequentially penetrates through the first side surface of the thermal insulating box and the thermal insulating plate and is then connected with a keel located on the side, away from the thermal insulating box, of the thermal insulating plate, and thermal insulating components are arranged at the connecting position between the vertical fixing portion and the thermal insulating box and/or at the connecting position between the vertical fixing portion and the thermal insulating plate; and the oblique fixing portion is used for fixing the camera to the side wall of the mounting cavity according to a set angle. Compared with the prior art, the camera mounting structure assembly provided by the invention is simple in structure, high in mounting strength, wide in application position range, good in thermal insulating effect and low in energy consumption; and a large portion of the camera is hidden in the thermal insulating box, and it is guaranteed that the appearance is attractive.