The experimental study was under the condition oI glasshouse on the aphcation of FA Handilong. Different use way and different use quantity were made in this research. The effects on soil moisture, vegetal rate, output and the quality of melon were studied. The data shows that FA Handilong could effectively improve the soil moisture, advance the growth of melon, increase the output and improve the quality of the melon. According the research this paper provides the reasonable use way and use quantity.