Objective To examine the oral health status among the orphan children and adolescents of Chongqing and assist in planning of the oral health programs.Methods According to the third national oral health investigation of epidemiology, the dental caries, gingival bleeding and calculus was examined among 317 orphan living in Chongqing, by cluster sampling. The statistical software SPSS 17.0 was used for the data analysis.Results In primary and permanent teeth, the prevalence of dental caries and mean DMFT (dmft) were found to be 50.00%, 1.94±2.81 and 39.53%, 0.90±1.38. There were no significant difference between female and male (P>0.05). But there was significant difference of the prevalence of per-manent tooth caries between the age group under 12 (include 12) and above 12 (PConclusion The oral status of the orphan is poor, and this community has experienced a low utilization of preventive or therapeutic oral health services. In the future work, orphans should be considered asapriority group when makeplansfor oral health care.