PURPOSE: The purpose of this study was to investigate factors that influence maturity fears in elementary school girls. METHODS: The participants were 118 3rd and 4th grade students from 3 elementary schools in 3 cities in Korea. Data were collected using questionnaires which included measurement scales for the relative variables and demographic data. Data were analyzed using t-test, ANOVA, Pearson correlation coefficients, and hierarchial regression analysis with SPSS/WIN 21.0. RESULTS: The significant predictors of maturity fears were weight, father-child communication, frequency of maturity communication with father, and close relation with mother. CONCLUSION: For effective management of maturity fears in elementary school girls, programs including weight control, functional communication with father and supportive nurturance of mother should be developed.