Abstract: Objective To explore the utilization of public health services and its influencing factors among migrant workers in Beijing.Methods With multistage stratified cluster sampling,a questionnaire survey was conducted among 1 002 migrant workers in Beijing.Results Among the migratnt workers,778(77.64%) were more than 15 years old,of which,4.2% ever took lectures on health education,60.5% knew that they could take five vaccines free of charge,and 26.3%knew nothing about AIDS transmission.The antenatal care(ANC) and the rate of post-partum home visit were 76.6% and 32.1% among the female migrant workers.The rate of establishing immunization card among the children of migrant workers was 97.5%.There were significant differences in the utilization of public health services among the migrant workers with different age,average annual family income,education level,job type in Beijing,dwelling time in Beijing,working hours per day and self-evaluated health status(P<0.05 for all).The results of logistic regression indicated that average annual family income(odds ratioOR=1.165),age(OR=0.974),dwelling time in Beijing(OR=1.176),job type in Beijing(OR=1.828),and working hours per day(OR=0.788 )were the main factors influencing the utilization of public health services among the migrant workers.Conclusion Migrant workers in Beijing failed to make full use of the public health services.