Abstract: Natural uranium，as the core resource of nuclear fuel，the safety level of its transportation is of prominent significance to the utilization of nuclear energy，public safety and environmental protection. The transportation process of natural uranium is complex，involving various transportation means such as roads，railways and sea transportation，and facing multi-dimensional risks such as radiation protection，en⁃ vironmental safety and security. The research sorted out and summarized the current situation of the safety of natural uranium transportation，analyzed the transportation channels，policy regulations and regulatory sys⁃ tems，dissected typical accident cases，summarized the progress trends of key technologies，and discussed the future development paths. The transportation technology of natural uranium is constantly improving，and international transportation regulations are gradually being unified. However，safety incidents are still main⁃ ly caused by human factors or packaging defects. Intelligent monitoring means，international cooperation and regulatory coordination should be further enhanced to effectively raise the safety level of natural uranium transportation.

Key words: natural uranium, transportation safety, security control