Golden apple snails (Pomacea canaliculata) were first introduced as food for high protein source and were later widely used as a means of weeding in rice paddies by taking of their vigorous feeding habits. Since 2000, the wintering of golden snails has been found and damage to rice plants occurred by them. To prevent damage, a means to control golden apple snails has become necessary. In this study, we investigated the possibility of eco-friendly control of golden apple snail by using Styrax japonicus fruit that grow naturally in-country. When the ethanol extract of the fruit was treated for controlling golden apple snail, the effect of over 90% was confirmed at 250 and 125 ppm after 1 day. Using UPLC MS analysis, two major compounds, dihydrorotenone known as a natural pesticide was detected. The molluscicidal activity was confrimed at 50 ppm of dihydrorotenone standard material. Our results showed that the possibility of developing an eco-friendly agent of golden apple snail using S. japonicus fruit was confirmed.