This study aims to discuss the implementation of language politeness and the supporting and inhibiting factors in Islamic Religious Education lessons.The type of research is field research using descriptive research methods. Sources of data used include documents, recordings, archives, interviews, direct observation, participant observation and physical devices such as videos and pictures. The methods of collection are (1) documentation; (2) observation; and (3) interviews. The data analysis techniques in this study are: (1) data reduction; (data presentation); and (3) drawing conclusions. The implementation of language politeness in Islamic Religious Education consists of four stages, namely planning, organizing, implementing, and evaluating. The inhibiting factor for the implementation of language politeness in Islamic Religious Education is due to the violation of maxims or politeness indicators, because this happens very often during the learning process. While the supporting factors are the existence of quality human resources, namely teachers who have long enough teaching experience so that they are able to convey understanding to students about the importance of polite language in everyday life, especially in the school environment. Availability of adequate teaching materials and teaching media. The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education the existence of quality human resources, namely teachers who have long enough teaching experience so that they are able to convey understanding to students about the importance of polite language in everyday life, especially in the school environment. Availability of adequate teaching materials and teaching media. The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education the existence of quality human resources, namely teachers who have long enough teaching experience so that they are able to convey understanding to students about the importance of polite language in everyday life, especially in the school environment. Availability of adequate teaching materials and teaching media. The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education namely teachers who have long enough teaching experience so that they are able to convey understanding to students about the importance of polite language in everyday life, especially in the school environment. Availability of adequate teaching materials and teaching media. The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education namely teachers who have long enough teaching experience so that they are able to convey understanding to students about the importance of polite language in everyday life, especially in the school environment. Availability of adequate teaching materials and teaching media. The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education The enthusiasm of students to take PAI subjects because it has a relationship with the religious material that he has learned at his home or cottage. Motivation from parents, friends and relatives to always speak politely anywhere, so that this will help the success of the language politeness implementation program in Islamic Religious Education.