Any kind of sex trade in China is technically banned but practically ubiquitous. In other words, the sex industry operates entirely underground. According to the annual report (2012) of U.S. Congressional-Executive Commission on China, the population of sex workers in China is between four and six million. Many of them work in brothels disguised as salons, massage parlors, saunas and karaoke bars. Some of them may migrate to neighboring cities for engagement in sex work in the hope of earning more. Sadly, Mainland sex workers are usually intimidated, criticized, exploited and abused.

In this study, 344 women who engaged in sex work in Hong Kong, Macau, Shenzhen, and Jinan were interviewed to explore their experiences of migration, the working environment, the judicial system and health related issues in the four locations. Based on the result, we recommend NGOs that provide services to sex workers to launch services that promote sexual health education, legal support, and provide relevant information of destinations where Mainland women plan to migrate for sex work in order to safeguard them from being victimized.