based on some space camera structure as the research subject, the statics analysis and modal analysis were studied using hypermesh software. with the first order natural frequency being as constraint object, the topology optimization design of the original structure was made using optistruct software, which made the static deformation decrease by 42.4%; the fundamental frequency increase by 12.1%, effectively resolving the problem of the vibration of the circuit board components. some further studies are necessary for the structure design of space camera.