【目的】　为了解弱智患儿的碘代谢情况。　【方法】　测定了秦巴山区 4～ 14岁弱智患儿 10 1例和正常儿童 98例的食用盐碘、尿碘和血清T3、T4 、TSH含量。　【结果】　两组间各项指标均无明显差异。　【结论】　弱智患儿与正常儿童在碘代谢方面差别不大 【Objective】 To understand the iodine metabolism in mentally retarded children. 【Method】 The contents of iodine, urinary iodine, serum T3, T4 and TSH in 101 children with mental retardation in 4 ~ 14 years old and 98 normal children in Qinba Mountain were measured. 【Results】 There was no significant difference between the two groups. 【Conclusion】 Children with mental retardation and normal children have little difference in iodine metabolism