This study aims to provide a description of character building strategies in children as an effort to build religious traits in children. This religious character building strategy is very important and very much needed for students as a provision to face changing times in the 21st century, to overcome moral degradation which is an important issue that is widely discussed and is a threat to the world of education in Indonesia. The link in this case is that students are expected to be able to have a good personality according to the size of good and bad based on religious provisions and provisions. library research (library reseach). The library approach utilizes the library to obtain research data. This research consists of systematic problem identification, analysis of documents related to the study of religious character education from the perspective of the Qur'an. The approach used is a qualitative descriptive research approach using a normative approach. The data source used is the primary source, namely the verses of the Qur'an. Therefore, it is very important to examine more deeply the formation of children's religious character in the 21st century era in the perspective of the Qur'an.