Phthalates are environmental endocrine disruptors that can harm the human health. In this study, the settled dust were collected to analyze phthalate pollution characteristics in the dormitory of college students in Xicheng District campus of a university in Beijing. The results show that the detection ratio of phthalates in dust is 100%, and the concentration of ∑PAEs is in the range of 62.4-1851.7 μg/g. Four types of phthalates were detected in dust, namely DIBP, DBP, DCHP and DEHP, and the detection ratio ranged from 11.3% to 100%. DCHP and DEHP are the main pollutants, and the concentrations are in the range of 23.9-922.6 μg/g. The concentrations of DBP and DIBP are nd-444.4 μg/g. The pollution level of phthalates in dust is higher in female dormitory than in male dormitory, and higher in shady dormitory than in sunny dormitory, which indicates that phthalate pollution in the dormitory is related to orientation and student gender. The median of PAE oral exposure is nd-5.68×10-2 μg/(kg·day), and the median of DEHP carcinogenic risk is 7.95×10-7, which indicates that PAE pollution in college students' dormitories is serious, and there is a certain carcinogenic risk. The more attention and research should be paid to the PAE exposure for the college students.