The purpose of this study was to identify parents’ literacy behaviors and children’s emergent literacy skills, as well as the relationship between them, in multicultural families and non-multicultural families with four- to six-year-old children. Fifty-one children and their mothers in multicultural families and 51 children and their mothers in non-multicultural families, all of whom were living in Seoul or Gyeonggi Province, participated in this research. The results of the study are summarized as follows: 1) parents in the multicultural families engaged in literacy behaviors (e.g., helping to read books and environmental print, and teaching writing) with their children less frequently than those in the non-multicultural families; 2) compared with the children in the non-multicultural families, the children in the multicultural families had smaller vocabularies, lower scores on knowledge of the Korean alphabet (e.g., principles of consonant addition and alphabet composition), and lower writing scores; 3) there was a positive correlation between parents’ literacy behavior and children’s vocabulary in both the multicultural and the non-multicultural families. In non-multicultural families, the parents’ literacy behaviors were associated with their children’s knowledge of the principle of alphabet composition and writing ability.