Abstract: ObjectiveTo realize AID Sre la ted knowledge,attitude and practice(KAP)among the consumers in internet bar and to provide evidence for AID Sp revention.MethodsSelf-designed questionnaire was used to investigate KAP of AIDS among the consumers of internet bar and SAS was adopted for data analysis.ResultsThe total subjects was 2953.Men accounted for 70.94% and women accounted for 29.06%.The average age was 21.19 years.64.64% of the subjects knew AIDS could be prevented but could not be cured.The ratio of subjects who knew the un-transmitting ways and protective measure was less then 70%.Only 8.14% of the subjects used condomevery time,and the most of them for the purpose of contraception.ConclusionThe internet bar consumers lack AIDS knowledge,especially the un-transmitting ways and protective measures.More in terventions should be carried out in the population.