【Objective】 To compare the nutrition status of infants before and after nutrition interventions in Ningqiang county. 【Methods】 The project provided nutrition interventions which feed infants aged 6~24 months one packet Yingyangbao per day and educated babysitter how to feed infants properly in Ningqiang county.Before and after the 18 months nutrition interventions,327 and 300 infants aged 6~24 months were sampled respectively to complete the investigation.Effectiveness of nutrition interventions was evaluated by analyzing the differences of infants' length,body weitht,hemoglobin concentration,WAZ,HAZ,WHZ,underweight rate,stunting rate,wasting rate and anemia rate between two samples. 【Results】 After the interventions,average weight and length of infants aged 6~24 months increased 0.90 kg(t=-9.94,P<0.01)and 3.40 cm(t=-7.74,P<0.01)respectively,and there were significant differences between before and after interventions.WAZ(-0.48 vs 0.09,t=-6.95,P<0.01),HAZ (-0.73 vs -0.25,t=-4.63,P<0.01) and WHZ(-0.15 vs 0.30,t=-4.90,P<0.01) also increased significantly.Through the nutrition interventions infants' hemoglobin concentration increased from 10.94 g/dL to 11.70 g/dL(t=-7.97,P<0.01),anemia rate decreased from 49.5% to 23.9%(χ²=43.72,P<0.01),and the results of statistical analysis showed that significant differences exist. 【Conclusion】 Through 18 months nutrition interventions the nutrition status of infants aged 6~24 months could be improved significantly.