This research is based on the lack of effectiveness of learning applied by educators so that learning is monotonous, the differentiated learning model applied is still not in accordance with the characteristics of students, and students' interest in learning in PAI subjects is still lacking. This study aims to determine the influence of differentiated learning models on students' learning interests in PAI subjects at SMP Negeri 1 Tarogong Kaler Garut. The method used is descriptive quantitative with a survey design. Data was obtained through observation, interviews, documentation, and questionnaire distribution, from a population of 438 students, as many as 79 respondents were selected using probability sampling techniques with the type of cluster sampling method. The data analysis in this study includes validity test, reliability test, descriptive statistical analysis test, normality test, linearity test and hypothesis test as well as t test and determination test. The results of the study show that the differentiated learning model is well implemented, as seen in the recapitulation of variable X, namely the overall mean obtained of 78,87 which is in the high or good category. Meanwhile, students' interest in learning in PAI subjects showed good results, as seen in the recapitulation of variable Y with an average score of 94,54 which was in the high or good category. The results of the Determination Test obtained an R Square value (0,592) which is in the moderate category, meaning that the contribution or influence of the process differentiated learning model (X) on student learning interest (Y) is 59,2%, the remaining 40,8% is influenced by other factors. This indicates that the differential learning model has a high or good influence on students' interest in learning PAI subjects at SMP Negeri 1 Tarogong Kaler Garut.