On the three afternoons of 31 August – 2 September 2019, 21st-Century Maritime Cooperation Committee and World Association of the Major Metropolises (Metropolis) jointly held the Online Workshop on Marine Ecological Conservation and Disaster Risk Reduction via Zoom. The workshop was attended by more than 60 local governments and organisations from Australia, Afghanistan, Pakistan, Republic of Korea, Cambodia, Kenya, Myanmar, Nepal, Spain, Indonesia and China. Through lectures and panel discussion, participants deepened their understanding of Fuzhou’s marine development, including marine disaster prevention and reduction, marine industry development, current status of native oyster reefs and related ecological restoration approaches, marine aquaculture and sustainable development, and conservation and sustainable utilisation of marine biodiversity. The workshop contributed to promoting the sense of calling and responsibility for marine ecological conservation and disaster risk reduction, and laying a foundation for future cooperation in related fields. Representatives from all parties actively offered their opinions and suggestions on marine ecological conservation and disaster risk reduction.