The purpose of this study is to identify the implementation of assertive training in formal education in Indonesia. The research questions that will be answered are: (a) How successful is the use of assertive training? (b) What are the objectives to be achieved in the application of assertive training? (c) What levels of education are the targets for the application of assertive training? The research method used is Systematic Literature Review (SLR). The SLR method is used to identify, assess, and interpret all findings on a research topic to answer predefined research questions. The SLR method has three steps, namely planning, conducting, and reporting. Sources of data in this study were collected from Garuda Digital Reference and Google Scholar. The articles reviewed were 20 articles. The article selection process is determined by compiling the criteria used, namely (1) articles published between 2013-2021; (2) the implementation of assertive training is limited to the world of education, especially the type of formal education. The results showed that the success rate of assertive training was quite high in students. The goal to be achieved by this assertive training technique is to change maladaptive behavior into adaptive behavior. The level of education that uses assertive training is from junior high school to high school. The results of this study can be used as a reference and consideration by future researchers to develop other research on assertive training.