China’s international cooperation on COVID-19 vaccines is a vivid practice of a community of common health for mankind. China insists on ensuring the accessibility and affordability of vaccines in developing countries，making vaccines a global public good；it has deepened international cooperation on vaccines through various means，such as cooperative R&D，joint production，aid and donation，and building cooperation platforms，so that Chinese vaccines have gained global recognition，increasing the vaccine penetration rate in developing countries，enhancing the vaccine self-sufficiency of recipient countries，and benefiting countries in relevant regions. China’s participation in promoting international cooperation on vaccines demonstrates the value of people first and life first in the human health community，boosts the confidence and cohesion of global solidarity against epidemics，and promotes the improvement of the global health governance system.