Abstract: Hainan launch site will be put into operation soon, where the spacecrafts to be launched may face the risk of corrosion during the shipping and coastal period. This paper, by comparing the Jiuquan, Xichang and Taiyuan launch sites in corrosive environments, and taking examples of the corrosion case of aerospace products in the NASA Kennedy Space Center during the shipping and coastal period, analyzes the risks of corrosion of spacecraft which will be launched at Hainan launch site during the shipping and coastal period. Based on the NASA and ESA strategies against corrosion of aerospace products during the shipping and coastal period, some suggestions and measures are proposed for China's spacecraft to be launched in the coastal Hainan launch site.