Two species of Pangdahai--Scaphium lychnophorum Pierre and Scaphium wallichii Schoott & Endl. were introduced into Hainan Island in 1970s. Over a long-term observation and investigation at four different trial points, the results showed the main limited factor of the cultivation was typhoon; only in Nada area, northwest in Hainan Island, the upper two species grown well and bloomed after 14-16 years of planting, but not fruit. The analysis of the causes of the non-blossom and fruitlessness have also been made in this article.