The character of moderate Muslims is enshrined in the Qur'an and al-Hadith, both of which are the main sources in Islam, besides these two arguments, a Muslim must also refer to the turats books written by previous scholars as a companion reference to understand Islam. The existence of turats books certainly plays an important role in helping the understanding of the reviewers of Islamic sciences, considering that currently there is a rise in radical and liberal understanding which brings anxiety to parents of students in this era of globalization. The purpose of this study is to explain how the process of forming moderate Muslim characters through the study of turats books at Al Hidayah Islamic Boarding School Sukorejo Pasuruan. The research approach used in this study is a descriptive qualitative approach. The data in this study were obtained through in-depth interview techniques, observation techniques and documentation techniques. The results of this study illustrate that by studying the turats books play an important role in shaping the character of moderate Muslims in a student at Al Hidayah Islamic Boarding School Sukorejo Pasuruan.