The long focal length remote camera frame structure has a large primary and secondary mirror magnification ratio, structure stability and other issues which are difficult to be designed. For this type of camera structural design problems, by analyzing a detailed the structural design input of the camera, we propose a double-layer 14 truss structure design. The finite element analysis shows that the first order natural frequency is 114.97 Hz, and secondary mirror substrate around the X-axis angle is 5", along the Y-axis maximum rigid body displacement 0.03 mm. By testing truss structure and dynamics of the static rollover, the test results show that the maximum angle truss structure changes in static flip 6", and the maximum angle changes dynamically loaded 6.5" input indicators meet the design requirements.