Interest in problem eating behavior in children has grown from a recognition that eating behaviors may contribute to child growth and development. In order to understand the status of problem eating behavior in young children and to examine whether background factors are related to them, a cross-sectional survey was conducted in Taipei County with 750 subjects between the ages of 1 and 5 years. The results showed that the common problem eating behavior includes eating snacks (64.6%), eating sweets (42.3%), picking foods (42.2%), and refusing foods (32.7%). Problem eating behavior has been seen in children as early as the first year of life. The cumulative rate curves of problem eating behavior increased by the age of 3 years. Child's age, number of siblings, mother's education, family economic index and urbanization level were selected as significant predictors with respect to problem eating behavior. It suggests that prevention or intervention of problem eating behavior should be implemented in young children as early as possible.