In this study, we interviewed 293 Chinese female sex workers (FSW) in Hong Kong of them, 55.6% of had experienced induced abortion 52.0% of which were accomplished in registered clinics. Those who were older, married, with frequent insomnia, did not use condom in the last episode of serving a client, and would agree not to use condom if paid more, were more likely than others to have had induced abortion (multivariate OR = 2.34 to 3.64). Those who were younger, had harmed herself, and drank at least 5 cans of beer per day (OR = 0.36 to 3.02) were more likely than others to have the induced abortion performed via improper means.