This study aims to examine the factors that influence investment interest. We test the effect of Motivation, Knowledge, Information Technology on Investment Interest in the Islamic Capital Market with Risk Perception as an intervening variable. The research was conducted in Banyumas Regency, with Millennial Generation as sample. The research used a survey method based on quantitative measurements. 115 respondents were selected using non-probability sampling method with accidental sampling technique. The data analysis used was validity and reliability test, classical assumption test and multiple regression analysis and Sobel test.The results shows that motivation and knowledge partially have a positive effect on risk perception, while information technology does not have a positive effect on risk perception. Other results show that risk perception, motivation and information technology have a positive effect on investment interest, while knowledge does not have a positive effect on investment interest. The Sobel test shows that risk perception is proven to be able to mediate the relationship between motivation and investment interest. However, risk perception is not able to mediate the relationship between knowledge and investment interest, but able mediate the relationship between information technology and risk perception.