Pesantren and Qur'anic school are prominent educational pioneers in the largest Muslim populated country, Indonesia. Qur'anic school is the oldest education system, which later inspired the birth of traditional Islamic boarding schools or Pesantren that have been growing so rapidly and giving unique characteristic of Islamic education practice throughout of the country. Nowadays Qur'anic schools are almost everywhere in cities and villages, providing Qur'anic reading lesson for Muslim children and educating them to be pious generation based on Qur'an and Hadist. At present, Pesantren has reformed its roles not only serving Islamic education for ordinary villagers, the sons of the middle-class Muslims, and aspiring religious scholars, but also functioning as center of trainings for Qur'anic schools teachers. Although Qur'anic schools and Pesantren are always popular, researches about them remain few. This study uncovered the role of Pesantren at semi-urban rural area of Banjarneagara Regency in Central java in Qirp'ati and Iqro Qur'anic teacher training education as well as describe the process of reconstruction of Islamic knowledge by Qur'anic school teacher. It was found out that there were three steps of reconstruction of knowledge, namely filtering, adaptation, and implementation.