Abstract
This paper aims at explaining the characteristics of changes of closed school in local governments due to the type classification of children number and closed school rate with the database about the children of every public elementary school, the establishment and closed school that is built diachronically from 1949 until 2011. In the first period, the correspondence to the increase in number of children was done by establishing new schools and closing branch school in the county districts progressed rapidly on second period. The number of children shifted to the decrease again, and after 2001 years, the streamlining of schools had been proceeded after the merger in forth period.