This research was conducted with the aim of determining the psychological factors that influence people's interest in using sharia financial services. The sampling technique used was a purposive sampling technique with the community population in Alas and Buer Districts calculated using the convenience formula. This research uses a quantitative research method with primary data in the form of a questionnaire. Hypothesis testing uses simple linear regression analysis techniques. So the results obtained in the research show that sharia economic literacy has a positive and significant effect on people's interest in sharia financial services with a significant value of 0.000 < 0.005 with the regression equation, namely Y = 1.118 + 0.227 X.