Background: The first years of life are considered a critical period for the human being, requiring basic care that helps optimize growth and development to the maximum. The objective of the study was to determine the relationship between maternal sociodemographic and anthropometric factors of children aged 6 to 36 months and dietary characteristics. Methods: A descriptive, cross-sectional study was carried out in 60 mothers of children aged 6 to 36 months. Data was collected through the 24-hour recall. Results: There was a significant relationship between the age of the child with the consumption of dairy products (p=0.006, v=0.400), eggs (p=0.009, v=0.362) and continued breastfeeding (p=0.000, v=0.514), moderate significant relationship between weight/height and vegetable consumption (p=0.026, v=0.312), low significant relationship between mother's residence and adequate meal frequency (f=0.029, v=0.299), significant relationship moderate between the level of instruction with the amount of food (X2=5.701, p=0.017, v=0.308). Conclusions: The mother's residence and educational level seem to be related to the frequency of food, the consumption of meat and the amount of food. Of the child, age and height with egg consumption; age with dairy consumption, daily feeding frequency, continued breastfeeding, weight/height of the child with vegetable consumption. © 2022 Sociedad Espanola de Nutricion Comunitaria. All rights reserved.