本文通过五年对碘盐的加工、贮存、包装、运输、销售和病区居民食用情况的监测及含碘量的动态观察,报告了用喷雾式加碘机湿混法在粗盐中加碘化钾,加碘量极度不均。高低浓度之间相差10倍以上。盐从碘化到病区居民食用间隔期平均五个月,包装不好或无包装,含碘量丢失了47.5％,有17.2％的用户碘盐含碘量在7.65μg/g以下。这是缺碘性疾病不能彻底控制的重要原因。 This article through five years of iodized salt processing, storage, packaging, transportation, sales and ward inhabitants monitoring of the situation and the dynamic observation of iodine content, reported the use of spray iodine wet mixing method in the crude salt potassium iodide , Iodine extremely uneven. Difference between the level of more than 10 times. Salt from iodization to ward residents eating interval of an average of five months, the packaging is not good or no packaging, iodine content was lost 47.5%, 17.2% iodized iodine users in 7.65μg / g or less. This is an important reason why iodine deficiency disorders can not be completely controlled.