This study aims to describe and analyze the extent to which the influence of the socio-economic status of parents on the learning outcomes of class students. The research method uses quantitative research with a descriptive correlative approach implemented at Madrasah Aliyah Persiapan Negeri 4 Medan. The population in this study were all students of class XI with a sample of 168 students. The data analysis technique in this study used a prerequisite test consisting of a normality test, a homogeneity test, a linearity test, and a multicollinearity test. Then continued with a hypothesis test consisting of a partial test (t test), a simultaneous test (F), multiple linear regression analysis, a determination coefficient test (R2) and a correlation coefficient test. The results showed that in the education level coefficient, the Tcount value Ttable is 2.348 <1.97462, so Ha is accepted and H0 is rejected. This means that there is an influence of parental income level on student learning outcomes. While in the work coefficient, the Tcount value Ftable is 2.762> 2.66, so Ha is accepted and H0 is rejected. So it is obtained that there is an influence of parental socio-economic status on learning outcomes which can be shown from the value of the determinant coefficient (R square) of 0.048, meaning that the influence of the socio-economic status variable on learning outcomes is 0.048 or 4.8%. While the correlation value (R) is 0.220 or 22% which indicates a low level of relationship. From the above understanding, it can be concluded that there is an influence of parental socio-economic status on student learning outcomes (Ha is accepted and H0 is rejected).