Abstract: Amblyseius swirskii (Athias-Henriot), native to the eastern and southeastern part of the Mediterranean region, is a polyphagous predatory mite used for the control of whiteflies. Due to the lack of commercialized predatory mites for controlling whiteflies in China, we are intending to introduce the predatory mite to control greenhouse whiteflies. According to regulations, environmental risk assessment is fundamentally necessary before the release of exotic natural enemies, among which establishment potential evaluation is a priority. The study estimated potential annual voltinism using degree-day model with temperature data from Beijing Meteorological Station, and assessed winter field survival of the predator. The results showed A. swirskii could complete a total of 20 generations per year in Beijing, but it was not able to complete life cycle from the beginning of November to the end of March. The predators all died when they were placed outdoor for 35 days. These results show that A. swirskii is unable to establish population in the winter in Beijing, China.