This study aims to determine the application of character education through language politeness in children aged 4-5 years in Raudhatul Athfal (RA) Man'baul Huda Siasem. The research design used in this research is descriptive qualitative research. The approach used is a qualitative approach. Data collection techniques used by using observation techniques and interview techniques. The validity of the data used in this study is source triangulation. The data analysis technique used in this research is the analysis technique using the equivalent method and the analysis technique of sorting certain elements.Based on the results of the study, it was concluded that: 1) the condition of language politeness in children aged 4-5 years in Raudhatul Athfal (RA) Man'baul Huda Siasem, namely the school made efforts to minimize the impact of language politeness deviations by making several efforts, namely: (a) with provide verbal warnings or direct reprimands to children if they make mistakes, if verbal warnings do not work, they will be warned in writing or use a warning letter to be given to the child's parents; (b) the school conducts a home visit program. this program is carried out by the school to establish closer relationships with children and their parents; (c) The school works with parents to limit the use of social media or mobile phones. 2) efforts to implement character education for children aged 4-5 years in Raudhatul Athfal (RA) Man'baul Huda Siasem, namely (1) school conducts preliminary activities, (2) core activities and, (3) closing activity.