The Amragachhia Secondary School was established in the year 1966 as a jounior high school. Since then it was functioning smothly with local subseription and donation but due to able guidence. Mainly the historical Amragachhia High School was founded by Mr. Munsur Ahemed Howlader and Mr. Abdul Halim Howlader, on january 1966 with 30 student's. As a fullfiedged high school for the first time from 01.01.1972. At that time, the doner of this school were Mr. Assaruddin Howlader, Mr. Eshak Howlader, Mr. Shahed Ali Jomadder, Md. Altaf Hossen Howlader, Mr. Wazed Howlader and Mr. Hazrat Ali Howlader. The first Headmaster of this school was mr Arshed Ali. In 1972 the school started one shift. The high school is a well-known school at mirzagonj upazila in patuakhali district.