The industrial chain of marine equipment is extensive and complex, playing a vital role in ensuring the security of the marine economy. In China, part of the marine equipment market and orders are based abroad, and some of the core technologies and ancillary equipment rely on imports. Once affected by the international situation, the industrial chain might be cut off. Therefore, it is necessary to promote the independent and innovative development of the marine equipment, thereby ensuring the industry chain safety and high-quality development of marine equipment. This study proposes a marine equipment industry chain map. Focusing on the marine transportation equipment and the offshore oil and gas equipment, it analyzes the development status of the marine equipment industry chain in China and abroad, clarifies the development situation and problems regarding major links of the marine equipment industry chain in China, and proposes the principles, goals, and breakthrough directions. Raw materials and the final assembly are advantageous links for China, while equipment design and ancillary equipment are weak links; In particular, China's independent support capabilities for high-tech ships and deepwater oil and gas development equipment are insufficient. Therefore, it is necessary to stimulate the domestic demand for marine equipment through policy support, focus on the advantageous innovation direction of high-end marine equipment, and strengthen international cooperation.