Abstract: Ampullaria gigas Spix is a major invasive organism in rice farms in Southern China. It has become much more invasive and dangerous to rice growth and other related crops, and even to agro-biodiversity and natural environment in recent years. This paper introduces the state of A. gigas invasion in China and advances important ecological issues of research concern, including ecological suitability and tolerance of A. gigas in paddy fields, outbreak modes and A. gigas population prediction, ecological risk, integrated management and ecological control of A. gigas.