Abstract: Based on the sampled distribution data of Solidago canadensis in northern hemisphere,research was carried out to predict potential distribution of Solidago canadensis in China using the MaxEnt model as prediction model,and temperature and precipitation as environment variables.Results show that Solidago canadensis may infest an area much larger than that of its actual distribution now,suggesting that Solidago canadensis will continue to expand in China.Shanghai,Jiangsu,Zhejiang,Anhui,Shandong,Henan,Hubei,Hunan,Jiangxi,Fujian,Chongqing,Guizhou,eastern Sichuan,northern Guangdong and Guangxi,northeastern Yunnan,southern Shanxi and Shaanxi are the main suitable areas.Effective measures must be taken to protect these areas and others from Solidago canadensis invasion.