Nutritional problems are issues that affect individuals or communities as a result of poor diets that lack essential nutrients. At the age of fifteen months, nearly one-third of children in developing countries are malnourished, with the majority of them being the proportion of children with height for age below standard derivations (stunting), the proportion of children with weight for height below standard derivations (wasting), and underweight. This was a quantitative study with a cross-sectional approach. This research was conducted in eight local-public health centers in the Special Region of Yogyakarta in December 2018 until February 2019. The population of this research was children under the age of seven with the total sample of 383 children. This research was analyzed using univariate and bivariate analysis. Univariate analysis was used to determine the frequency, mean value, variation, and percentage distributions, which are expressed in n and percent. Bivariate analysis was used to determine the relationship between the independent and dependent variables. The statistical test used was a different proportion test with Chi-Square, CI (95%), and level of significance. The bivariate analysis result showed that the lack-family-support children under theage of five had the higher risk of experiencing underweight 0.04, stunting 0.28 and wasting 0.30. In addition, the children under the age of five who had lack of family-health worker cadre partnership had the higher risk of being underweight 0.36, stunting 0.43, and wasting 0.42. In conclusion, the nutritional status of the children under the age of five (underweight, stunting, and wasting) was indirectly affected by the variable of family support and family-health worker cadre partnership.