The purpose of this study was to investigate 1) color concept development in preschool children, 2) general color preferences using colored parers, 3) specific color preference using colored chairs, and 4) to determine the relationships of sex and age to general color preference. The present experiment with materials developed through the pilot experiment, was conducted with 70 3, 4, and 5-year-old children attending the Child development research institute of Yonsei Univ. as subjects. Data were analyzed with SAS package using frequency, percentage, $chi$sup 2-test, Csup 2 and visualized by SAS graph with tektronix 4113.