[目的]调查德令哈市儿童计划免疫接种率情况。[方法]于2010年8月10～20日对全市三镇一乡三个街道办事处的536名儿童进行入户调查。[结果]全市周岁内儿童均接受过疫苗接种,其中口服脊髓灰质炎疫苗初种率为99.83%,麻疹疫苗初种率为99.16%,乙脑疫苗初种率为99.68%,流脑疫苗初种率为99.48%,乙肝疫苗全程接种率为98.95%。[结论]该市2009年度计划免疫接种率达到国家要求。 [Objective] To investigate the immunization coverage rate of children in Delingha city. [Method] On August 10-20, 2010, 536 children from three towns in Sanzhen Township of the city were surveyed. [Results] The children in the city were all vaccinated within the first year of age. The rate of initial polio vaccine was 99.83%, that of measles vaccine was 99.16%, that of Japanese encephalitis vaccine was 99.68%, that of meningitis vaccine The rate was 99.48%. The whole vaccination rate of hepatitis B vaccine was 98.95%. [Conclusion] The planned vaccination rate of the city in 2009 reached the national requirements.