Abstract: Forty two insect species of Limacodidae had been collected in Jianfengling forest area,among them, 20 species belonging to 13 genera had been identified. Scopelodes venosa kwangtungensis, Susica pallida and Cania bilineata are of dominant species under moth-catching lamp and the Phocoderma velutina is an outbreak dominant species occurred in an irregular interval under natural condition. Among the species identified,one is a new record in China and 14 species are newly recorded in Hainan Province. For the ecological distribution of Limacodidae,the insect species are the most in the tropical mountain rain forest while for the geographical distribution of them,Thosea sinensis,Susica pallida and Cania bilineata are wider. According to the division of the insect geography,the species of Limacodidae of Oriantla region accounts for 75%. The range of imago emergence in each year is form 1～11 months.