Introduction: Malnutrition has been responsible, directly or indirectly, for 60% of all deaths annually among children. Over two-thirds of these deaths, which are often associated with inappropriate feeding practices, occur during the first year of life. Objectives: To assess child feeding practices of Gumuz mothers and its correlation with the nutritional status of their children in Metekele Zone; Benishangul Gumuz region, North West Ethiopia. Methods: The study was conducted from February to March 2013, on randomly selected mothers with under-five children. A structured questionnaire was used to collect data for quantitative while in-depth interview was used for the qualitative. Z-scores of anthropometric indices were computed using ANTHRO PLUS 2007. The data was analyzed using SPSS version 16.0. Association between independent variables affecting nutritional status of under-five children was identified by using multiple logistic regressions. Result: out of the 795 mothers interviewed, almost all (99.5%) ever breast-feed the baby, 95.6% imitated breast feed timely but 38.6% discard colostrum. From the sampled children 50.1% were in stunting, 14.2% underweight, and 10.2% with wasting. Place of residence (AOR: 1.5, 95% CL (1.07 - 2.12)), child age (AOR: 1.99, 95% CL (1.13 - 3.52)), mothers age (AOR: 3.62, 95% CL (1.08 - 12.18)), child currently not eat any solid/semi solid food (AOR: 2.38, 95% CL (1.45 - 3.92)), children receiving pre-lacteal feeding (AOR: 8.23, 95% CL (1.73 - 39.28)), frequency of feeding (AOR: 0.4, 95% CL (0.22 - 0.73)) and currently breast-feeding (AOR: 0.46, 95% CL (0.28 - 0.77)) were significantly associated with malnutrition of under-five children in the study area. Conclusion and recommendation: This study revealed higher proportion of malnutrition among children according the WHO classification. Optimal infant feeding practices should be promoted to improve nutritional status by providing adequate Information, Education and communication (IEC) on child feeding practices and further study were recommended.