The present study was designed to analyze items, to examine reliability, and to test construct validity of the Home Observation for Measurement of the Environment (HOME) with Korean subjects. The HOME was originally developed by the Syracuse Early Learning Project team to measure the quantity and variety of stimulation provided in the home environment for the promotion of children's development. The translated version of HOME was used to interview 184 mothers in the Seoul area (Jang, 1981), and the data were used for this study. The analysis of data was done with SPSS computer programs, including computation of item response rates, item discrimination index (phi), split-half reliability and Cronbach's α for internal consistency, and factor analysis to test construct validity. For factor ananysis, a Principal Components analysis was performed based on the R-matrix of 9 variables of HOME. Then, factors with eigenvalues greater than 1.0 and .90 were rotated by Varimax procedures. The major findings of the study were as follows: 1. The item response rates ranged from 4 to 99 percent, and the item discrimination indices(phi) ranged from 0 to .74. Excluding those items with item response rates greater than 85 or smaller than 15, and phi coefficient smaller than .20, a total of 76 items among 139 were found to be satisfactory. 2. The split-half reliability was .86, and Cronbach's α was .89, which was considered satisfactory. 3. Three factors were extracted from the factor analysis, and they accounted for 63 percent of the total common-factor variance of the entire test. 1) Factor-I was composed of variables 2, 5, 7, 8, and 9, and was considered to be a dominant factor, indicating “physical environment of the home and provisions for developmental stimulation and experience.” 2) Factor-II was composed of variables 3, 4, and 6, and considered to be a factor for “emotionality, warmth, and permissiveness of the home atmosphere.” 3) Mainly variable 1 had high factor loadings with Factor-III, indicating “stable and well-organized home environment.”