Through the collection and arrangement of relevant documents on marine intangible cultural heritage （hereinafter referred to as “marine intangible heritage”），this thesis reviews the protection measures，the development states and trends of China’s “marine intangible heritage” from 2018 to 2019，and the obtained results and existing problems are objectively analyzed and summarized. On the whole，China’s “marine intangible heritage” in 2018-2019 has been given some protection measures and formed the development models with Chinese characteristics in the new era. The “culture plus tourism” industry integration development model creates new opportunities for the inheritance，development and sharing of “marine intangible heritage”. In addition，under the guidance of the state’s concept of strong advocating of the promotion of the construction of national marine power，the protection work of “marine intangible heritage” has played an active role in the promotion of industrial integration in coastal areas，the construction of marine cultural ecological reserves，marine cultural products quality packaging，rural revitalization strategies，and targeted poverty alleviation programs. At the same time，in 2018-2019，the Chinese government has focused on strengthening the application of “marine intangible heritage” projects and the exploitation of industrial values in policy making，publicity，and brand building. As a result，a “marine intangible heritage” development model with Chinese characteristics in the new era has been initially formed.