Reducing　structural　weight　and　improving　the　efficiency　of　the　structure　are　the　eternal　themes　of　the　spacecraft.　The　cryogenic　tank　accounts　for　more　than　60%　of　the　dry　weight　of　the　whole　vehicle,　which　directly　determines　the　overall　lightweight　level　of　the　vehicle.　Compared　with　metal　tanks,　carbon　fiber　reinforced　resin　matrix　composite　tanks　could　achieve　a　structural　weight　reduction　of　more　than　20%,　which　is　the　key　to　improve　the　efficiency　of　transportation　and　lead　the　upgrade　of　the　aerospace　industry.　In　this　paper,　aiming　at　the　problems　of　unknown　deformation/performance　evolution　law　and　difficult　determination　of　process　parameters　in　the　curing　process　of　composite　tank　under　the　constraints　of　large　size　and　complex　structure,　the　variations　of　thermophysical　parameters　of　aerospace　composite　materials　with　temperature　and　curing　degree　is　found　out,　and　the　simulation　prediction　models　of　temperature　field　and　deformation　field　in　the　whole　curing　process　of　components　is　established.　The　effective　prediction　of　the　deformation　and　quality　of　tank　wallboard　is　realized,　which　provides　theoretical　and　methodological　support　for　the　high-quality　forming　of　aerospace　composite　components.