Abstract: According to the vegetation investigation and related references of Ung Kong islands in Hong Kong, plant resources of the islands were studied. The vegetation is not affected by human activities, wild resource utilization is not enough. The results showed a total of 166 vascular species, belonging to 138 genera and 69 families, including 10 species in 7 genera of 6 families of ferns, 2 species in 2 genera of 2 families of gymnosperms, and 160 species in 126 genera of 63 families of angiosperms. According to their economic utility, there were 103 medicinal plants, 107 ornamental plants, 21 edible plants, 23 forage and pasture plants, 17 timber plants, 22 oil plants, 25 aromatic plants, 13 textile plants, 11 tannic plants and 26 poisonous plants, which have high potential of development and utilization. On this basis, the vegetation and multiple plants resources were analyzed and suggestions were given, aiming at better conservation and sustainable utilization of the plants resources.

Key words: plant resource, vegetation types, Ung Kong islands, Hong Kong