To feed one self is for the human being a primordial necessity. A good diet is the first medicine to keep your nutritional status normal. Malnutrition is one of the main causes of infant and child mortality. Nutritional problems observed in infants and young children, are closely related to complementary feeding practices. A study was conducted on the nutritional practices and nutritional status of children aged 0-2 years in Brazzaville. Its objective was to assess the nutritional practices and nutritional status of children aged 0-2 in Brazzaville. Methods: By way of this, a lateral survey by interrogation has been carried out from a sample of 206 children of the nine districts. The data had concerned the nutritional condition, the dietary observance, the diet of infants and young children. Results: Breast-feeding is almost general to 95.1% with taking of colostrum by 75.7%, 92.3% children were taking breast dining the period of survey. After the birth, only 9.2% of children had been given immediately the breast after the birth. Exclusive breastfeeding made up 22.96% of children, with more than 4 times a day practiced in 80.1%. 57.3% took the porridge, 33.9% of which took it from the age of 6 months with 55.1% who took it twice a day. 61.2% take water of which only 2.4% took it from 6 months. 21.8% of children started eating special meals once a day (82.2%). 15.5% of children already eat family meals once a day, or (71.9%).The rate of emaciation weight of inadequacy and the late of growth are respectively to 7.2%, 8.2% and 13.6%. Conclusion: the investigation found that the dietary practices inflicted on these children are not good. The early introduction of additional food and the dietary diversification, also the weakness of frequency daily of consumption are factors which lead to different nutritional status of children survey.