Objective To monitor and analyse the urinary iodine content of the frequency distribution of 8~10-year-old children at Guilin city and counties area and provide a scientific basis for lay down of appropriate interventions. Method The samples collected from children urine for testing basis on professional standard of health of P.R.China WS/T 107-2006. Results The 1 400 samples detection value of urinary iodine from children results showed.8~10 years old children urinary iodine level ＜50 μg/L ratio was 1.29% and ＜100 μg/L ratio was 5.29% and had up to the national iodine deficiency disorders elimination of the standard.In overall samples of urine,the urinary iodine levels ≥200 μg/L and above accounted for 73.64%(1 031/1 400),the urban sample of children ≥200 μg/L accounted for 66.20%(331/500) and the counties sample of children ≥200 μg/L accounted for 77.78% (700/900) and in which samples of children in four counties of ≥200 μg/L accounted for 86.75%(347/400). Conclusion The overall index of urinary iodine samples detected has reached the national standard,but there are high levels of phenomenon of children's urinary iodine in the counties.