Objective To understand nutrition and growth status of infants aged 6~23 months in two of poorer counties,Lanping county and Heqing county in Yunnan province. Methods An observation was conducted by measurements of questionnaires,anthropometriy and hemoglobin concentration with 642 infants aged 6~23 months sampled by a stratification method.HAZ,WAZ and WHZ were calculated with WHO standards and the data was analyzed by software SPSS 17.0. Results Only less than 6% of nursing mothers fed their baby within 1 h,and the breastfeeding rate was 72.1% in Lanping and Heiqing counties.The stunting prevalence of infants aged 6~23 months in the counties was 14.2%,the underweight prevalence was 7.9% and the wasting prevalence was 5.1%,which the overall Results were lower than the 2002 poverty level in rural areas.Meanwhile,the stunting prevalence was significantly different among the three age groups,and the severe wasting and underweight still existed in various age groups,which had some impact on the caregiver's educational level.The anemia prevalence was 35.2%,which was lower than the Results (45.9%) in central and western regions of 46 counties.In addition,the anemia prevalence of infants aged 6~11 months was higher than that of the other two age groups,and with increasing age,that showed a gradual decreasing trend. Conclusions The Results indicate that the malnutrition of infants aged 6~23 months in the two poor counties in Yunnan province is high.There needs comprehensive intervention measures to improve the nutrition and health status of the infant in the region.