This paper analyses the factors of combining study and work and the factors explaining intensity of work during study in Russia, based on cross-sectional survey data. The issue of how Russian students combine work and study is analysed through the set of financial, academic, social and demographic predictors, quality of university and quality of students. These factors may have an effect on student employment and student labour supply, and help shed light on what motivates students to enter the labour market. We discovered that 64.7% of Russian students combined study and work and most of them begin working during their third year of study. Our results indicate that factors associated with the quality of students, such as studying in a top university and participating in research activities, positively affect the probability of student employment, but negatively affect the intensity of employment. Financial motivations for student employment are also significant. We found that students receiving financial support from their families are less likely to be employed during their study and work less hours. However, we found no evidence that combining study and work affects students' academic achievements.