Electrical circuit module is the first subject that students take in Industrial Electricity and the interest rate in this module is not high because students are no longer interested in solving problems and analyzing them with lessons. practice at school or at home. Pre-designed exercises are not helpful in understanding the calculation and analysis of circuit components. This article will discuss circuit modules in MATLAB and Simulink. Circuit analysis requires an industry-based approach that promotes learning based on specific circuit systems. In the industrial electrical vocational training program of the vocational college system, students were assigned the task of solving problems in the electrical circuit module. The results showed that when applying problems in MATLAB, students had a better understanding of the principles of electrical circuits. The students’ level of interest in Electrical Circuits problems also increased, leading to better retention of the course.