【Aim】 Centaurea solstitialis L. is a very dangerous weed that is classified and controlled as a noxious weed in areas such as the United States and Australia. At present, the colonization of C. solstitialis has been found in Xinjiang which shows a tendency to spread. The purpose of this study is to provide theoretical basis for early warning and control by Adaptability analysis and risk assessment of C. solstitialis in China. 【Method】 MaxEnt moadel was used to predict the potential geographic distribution of C. solstitialis in China, and multi-index assignment was used to to conduct quantitative analysis for the risk of invasion. 【Result】 The potential habitat area of C. solstitialis in China reached 32.96%, of which the areas of high, medium and low habitat were 11.21×10⁴ km², 34.16×10⁴ km² and 272.28×10⁴ km², respectively. The comprehensive risk assessment value of this weed was 2.01, belongs to highly dangerous. 【Conclusion】 C. solstitialis could occur at many areas of our country. The results provide the necessary theoretical basis for establishing a long-term early warning and control mechanism of C. solstitialis.