Abstract: The recent sudden events and/or natural disasters are happening with increasing frequency around the whole world, such earthquakes, hurricanes, tsunamis andmajor epidemic diseases (COVID-19), etc. Those destructive sudden disasters not only increase the demand for relief supplies both on quantity and kinds, but also bring a tremendous threat to people’s health and life as well as their property. The demand for relief supplies both on quantity and types after the outbreak of sudden disasters dramatically increases. To satisfy the affected people’s huge demand for such supplies, the Chinese government has been advocating social policies in the pre-positioning of relief supplies, and hopes to build a relief supplies guarantee mechanism combining the enterprises’reservation system and the government’s emergencywarehouses.

Key words: relief supplies pre-positioning; joint relief supplies pre-positioning model; relief supply chain coordination; profits allocation;option contracts