Abstract: The mangrove,especially the old tree population of Aviccenia marina in Techeng Isle,is one of the very precious coastal natural resources in China and highly significant both in their conservation and utilization. It is protected effectively through activities of recovering the old trees,improvement of the growing environments,gardening design and ecotourism,and itbecomes a new ecotourism site of Zhanjiang.The successful lab food products made of the fruits of Aviccenia marina from the Isle,Lan-Qian-Guo and Lan-Qian-Dou, show the potential double wins both in conservation and utilization of the coastal natural resources.

Key words: mangrove, conservation, utilization, Techeng Isle