Abstract: Objective： To analyze the contraceptives in floating population and the potential influential factors. Methods： The epidemiological cross-sectional survey was adopted in this study. The basic demography information， contraceptive use， and knowlege of contraception were included in the structured questionnaire. The χ2 test and logistic regression analysis were used to analyze the independent variables and influential factors. Results： There were total 1 414 persons who experienced sexual behavior among 2 001 respondents. There were 1 300 persons （91.94%） who took the contraceptive methods， including 51.08％of subjects who used IUD， 25.00％ who used male condom， and 17.15％ sterilization， and only 3.69％ used oral contraceptives. Compared with the younger migrants aged 18-24 years， those migrants aged 30-44 and above 45 years would like to use contraceptive methods. Those migrants who had higher income and higher score of contraceptive knowledge had higher rate of contraceptives use. Conclusions： There were some factors influencing their contraceptives use， such as marry status， age， income， contraceptive knowledge level and so on. It is necessary for us to advance IEC program on contraceptive knowledge， sexual behavior intervention， and to strengthen especially in those migrants whose had low income and poor knowledge about contraceptives.

Key words: Population, Resicential mobility, Contraception, Contraceptive behavior, Factor analysis, statistical