The gray-blue flat-tailed sea snake has been included in the 2010 IUCN Red List of Threatened Species ver 3.1 - Least Concern (LC). It has been listed in the List of Beneficial or Important Economic and Scientific Research Terrestrial Wild Animals under National Protection issued by the State Forestry Administration of China on August 1, 2000. .

The blue-grey sea snake lives in marine and coastal waters influenced by warm tropical climates, including coral islands, reefs, mangroves, and more. Often found in small crevices or under rocks on the shores of small islands and in shallow water at depths of 0 to 10 meters. Grey-blue flat-tailed sea snakeThe distribution is wide and the number trend is stable. Despite threats such as habitat destruction, industrial pollution of coastal areas, and overfishing, these threats have not resulted in a significant decline in the population and are listed as Least Concern by the IUCN.