Objective To study the knowledge, attitude and high risk behaviors about AIDS/STD among the migrant workers from the countryside, and provide theoretical foundation for health education and high risk behaviors interventions on AIDS/STD among migrant workers. Methods A stratified cluster random sampling method was used in the investigation related to the knowledge,attitude and behavior about AIDS/STD among the migrant workers in Guiyang, Anshun. and Zunyi. Results The rate of awareness of AIDS/STD knowledge was low in the respondents., Of respondents, 26.44% had not correct answer for the transmission route of AIDS/STD, 34.81% of respondents agreed on premarital sexual behavior, 26.33% agreed with sex outside marriage, 22.51% of respondents agreed on multiple sexual partners, 19.14% had more than two sexual partners, 37.82% of respondents never used condom during sexual intercourse. Conclusion The migrant workers had limited knowledge, even some misunderstanding about AIDS/STD. The question on high-risk sexual behaviors was still serious in these migrant worker group. ≥40 years old, low culture, male migrant workers should be taken as control of high-risk behavior intervention target population by all relevant sectors of society. It is time to strength the education of AIDS/STD and, and encourage them to change their high risk behaviors. © 2015, Shanghai Jiaotong University School of Medicine. All rights reserved.

Sexually transmitted diseases Unsafe sex Migrant worker Acquired immunodeficiency syndrome

condom use male concurrent sexual partnership sexual behavior migrant worker attitude to AIDS sexually transmitted disease disease transmission marriage acquired immune deficiency syndrome sex human adult Article knowledge high risk behavior sexual intercourse