Since the 18th National Congress held in 2012, Xi Jinping has repeatedly emphasized the development of China’s marine industry. Xi Jinping suggested a direction for the development of a maritime power, saying that China should change from a ‘sea great nation’ to a ‘maritime power.’ Xi Jinping emphasized that “building a ‘maritime power’ means paying attention to the ocean, knowing the ocean, managing the ocean, and unleashing the potential of the ocean.” He also emphasized that “the entire people must raise maritime awareness, build strong maritime capabilities, and form a ‘socialist maritime outlook with Chinese characteristics for the new era.’” The research objective of this paper is to examine the construction of ‘marine culture with Chinese characteristics in the new era’. To this end, this paper first examines the main contents of the marine policy and the marine policies implemented by different regions. It then examines cultural projects and cultural industries related to the construction of a ‘marine culture with Chinese characteristics in the new era’. Through this paper, we can understand the ‘maritime view of China in the new era’ and the ‘ecological civilization idea’ emphasized by Xi Jinping, as well as the marine culture policy, cultural projects, and cultural industries in the new era. The research method of this paper is literature research. In general, we look at what Xi Jinping emphasized or major documents released by the Chinese Communist Party and the State Council. In April 2022, while inspecting Hainan, Xi Jinping emphasized that building a ‘maritime power’ is a major strategic task for realizing ‘the great rejuvenation of the Chinese nation’. China’s policies related to building a ‘maritime power’ largely focus on four areas. The first is marine safety. The second is marine economic development. Third is confidence in marine culture. Fourth is marine protection. And the confidence in marine culture emphasized in China is closely related to Chinese marine culture and the development of cultural businesses and cultural industries. Particularly prominent in the policies related to ‘marine culture with Chinese characteristics in the new era’ is the confidence in Chinese marine culture and a ‘unified China’. To this end, China is conducting research on historical civilizations related to Chinese marine culture and exhibiting artifacts. In addition, it is trying to include Taiwan as part of China for the sake of a ‘unified China’, and emphasizing Taiwan’s related Majo culture and Jung Sung-gong’s restoration of Taiwan. China’s marine cultural projects and policies for the cultural industry are active in many areas. Most notably, maritime-themed dramas, films, and documentaries are being produced, as well as museums and maritime tourism. The construction of ‘marine culture with Chinese characteristics in the new era’ emphasizes building on the essence of traditional Chinese marine culture. The goal of the construction of ‘marine culture with Chinese characteristics in the new era’ is to take Chinese marine culture to a new level, and the Chinese government considers the construction of ‘marine culture with Chinese characteristics in the new era’ to be a historical task and mission on the road to the ‘the great rejuvenation of the Chinese nation’.