The purpose of this study is to analyze and clarify the relationship between the change of social status structures and the opportunities for access to schooling in Korea 1910-1938 evidently. The writer has established the research hypotheses for the purpose of this study. First, from 1910 through 1938 in Korea, the opportunities for access to schooling for the middle class (Joong In) and the lower class (Sang Min) increased as time went by. Second, from 1910 through 1938 in Korea, the opportunities for access to schooling for women increased as time went by. Third, from 1910 through 1938 in Korea, the opportunities for access to schooling for country people increased as time went by. In order to prove the above hypotheses the writer surveyed records preserved in secondary level schools during that time. The numbers of surveyed data are 5, 129 items in the 14 schools of Seoul, Kyungki province, and Daegu, but the actually used data for analysis was 4, 803 items. Next, the writer analyzed the collected data mostly by means of the quantitative analysis method of percentile rank. A summary of the findings from the above process is as follows; 1) 1910-1938 ; the number of middle class and lower class students was 47.5% of all the students, that is the smaller part of the students and the percentage increased in the latter part of this period. 2) 1920-1935 ; the number of middle class and lower class students attending vocational high schools was 57,6% of all students of vocational high school and the ratio incresed, as time went by, especially in the latter part of this period. 3) 1910-1935 ; the number of the middle class and lower class students living in Seoul was 44.0% of all the students in Seoul and the ratio increased, as time went by, during this period, but decreased during first part of the 1930's. 4) 1928-1938 ; the number of the middle class and lower class students attending schools in the country was 60.4%, and the percentage decreased slowly as a whole, as time went by. 5) 1910-1939: the number of the middle class and lower class students attending mission schools, schools supported by people, and public schols reached 70.2%, 45.6%, and 44.2% respectively. And the ratio of the students of mission schools increased greatly, the ratio of the students of schools suupported by people decreased somewhat, and the ratio of the students of public schools increased greatly, as time went by. 6) 1913-1938 ; the number of the middle class and lower class girls attending girl's high schools reached 58.7% of all school-girls, and the ratio increased a little as time went by during this period. 7) 1910-1929 ; the number of schoolgirls from the country attending girl's high schools in seoul reached 47.7% of all the schoolgirl's in seoul and the percentage increased greatly as time went by during this period. 8) 1910-1929 ; the number of schoolgirls from the country among all schoolgirls of mission girl's high school and girl's high school supported by people reached 65.8% and 39.4% respectively. The ratio of schoolgirls from the country attending mission schools was especially high, and the ratio increased as time went by during this period. 9) 1910-1935 ; the number of high school students from the country of all the non-vocational high school students in Seoul reached 63.5%, that is the greater part of all the non-vocational high school students in Seoul, and the ratio increased a lot as time went by in the latter part of this period. 10) 1910-1935 ; the number of high school students from the country among the students in Seoul attending mission schools, schools supported by people, and public schools reached 72.4%, 58.0%, and 65.6% respectively. Especially the ratio of the students from the country was very high in mission schools. And the ratio increased as time went by in the latter part of this period, but the ratio of students in public schools did not change much as time went by. The conclusions of this study are follows ; First, 1910-1938 ; the number of middle class and lower class students was 48.1% of all students and the ratio increased slowly as time went by. Therefore, the opportunities for access to schooling according to the social statuses did not reach the half of all students. Second, 1910-1938 ; the number of the middle class and lower class girls attending girl's high schools reached 58.7% of all schoolgirls, and the number from the country attending girl's high schools in Seoul reached 47.7%. Therefore, the opportunities for access to schooling for women according to the social status and birthplace increased somewhat as time went by. Third, 1910-1938 ; the number of high school students from the country reached 64.9% of all students in Seoul. Therefore, the opportnities for access to schooling for the students from the country increased generally as time went by. In sum, 1910-1938 ; in Korea, the opportunities for access to schooling according to social status,sex, birthplace did not reach sufficient level.