The invention discloses a rotating device for a remote sensing scanning mirror. In each scanning cycle of the scanning mirror, a rotating disk rotates an intermittent angle first, controls the main body of the rotating device to swing back and forth and rotates the rotating disk by an intermittent angle again, and such sequential cycle makes the rotating disk rotate 360 degrees to complete a scanning cycle, thereby ensuring the comprehensiveness, stability and order of the remote sensing scanning while ensuring the scanning range, and improving the remote sensing scanning performance. The rotating device provided by the invention can adjust the deflection of the adjusting block through a universal shaft and a universal joint, thereby adjusting the angle of the scanning mirror and wideningthe scanning range. By forming a lightweight metal surface glass in the invention, the lightweight metal surface vitrified mirror effectively laminates the lightweight metal with the large-area glassfor precision optical processing of the large-area glass and then plating of an infrared reflective film. Such mirror has high lightweight rate, and the high rigidity, high thermal conductivity and large-area glass has the excellent characteristic of being easy to precision optical processing.