Journal of E-Technology Wang Yan, Le Jiajin, Huang Dongmei, Zhang Yun 7 1 2016 http://www.dline.info/jet/fulltext/v7n1/v7n1_2.pdf Marine metadata and metadata standards are important for effective marine massive data management and Heterogeneous data exchange. This paper clarifies the dependencies and scopes of marine metadata in various lifecycle stages and proposes a marine metadata standard framework under lifecycle concept. Then a marine metadata lifecycle management model is given for effective marine metadata processing. In this way, standards and management system’ efficiency is improved for lifecycle framework and model’s timeliness, maneuverability and relative accuracy. At last, applications of the metadata standard framework and management model in lifecycle are implemented.