Base on monitoring and survey results of the water,sediment,and ecological quality as well as marine biological quality of the Beibu Gulf near shore areas from 2011 to 2015,environ-mental quality status and variation trends were evaluated,and marine environmental issues were taken apart,combined with marine ecological status.The results showed that the water quality of the Guangxi sea areas was good,and the sediment quality was excellent.However,the biodiversity index was low,and phenomenon of abnormal water quality and phytoplankton blooming in-creased.Some important biological habitats were serious interfered.Phenomenon of pollution in some part of sea areas were durative existed,and the water quality worse than the Grade V of the rivers flowing into the sea had not been avoided completely.The environmental risk of the Beibu gulf near shore was not negligible.It was suggested that the local government should take some available measures to protect the marine ecological environment safety,according to the new envi-ronmental protection law and the water pollution control action plan.%文章根据2011—2015年北部湾广西近岸海域海水、沉积物、海洋生态以及生物体质量监测与调查结果，采用单因子污染指数评价法、综合污染指数法、生物多样性指数法、质量分级评价法等对该海域环境质量状况进行评价，采用spearman秩相关系数法对该海域水质和沉积物质量变化趋势进行分析，结合广西海洋生态状况剖析海洋环境问题。结果表明：北部湾广西近岸海域海水质量良好，表层沉积物质量优良；但生物多样性指数偏低，水质异常和藻类异增殖现象增多，重要生物生境受侵扰严重，局部海域污染现象持续存在，入海河流未完全消除劣五类水体，环境隐患不可忽视。建议地方政府及相关部门围绕新《中华人民共和国海洋环境保护法》和水污染防治行动计划等要求，采取有效措施，全力保障广西海洋生态环境安全。
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