The literacy movement has been launched by the government to be implemented in schools with the hope of increasing student literacy. The purpose of this study was to determine the effectiveness of the School Literacy Movement program in increasing students' reading interest, especially at the junior high school level. Through a mixed approach, this research seeks to uncover phenomena that occur in schools. Sources of data from this study include the principal, teachers, library staff, and some students in class IX. Quantitative data collection was carried out by distributing questionnaires, with a total of 50 respondents, so all sample answers were used. Qualitative data retrieval is done through interviews, to obtain the credibility of the data in the early stages of cross-checking between data sources, the results of cross-checking are then confirmed through meetings with all participants. The results showed that the level of effectiveness of the implementation of the School Literacy Movement program was at the interval of 61-80%. Qualitatively, the support and enthusiasm of stakeholders in implementing the school literacy movement program is quite high. This situation shows that the implementation of the school literacy movement needs to be improved so that it is expected to increase the literacy spirit of students.