Analyze the predictive relationship between motivation, vocational interests and habits of studies in students of nursing of a private university in Lima, Peru is the objectives of this research. The study involved 125 nursing students (53 of the first grades/72 of past grades) selected by an intentional sampling. The results showed, controlled motivation predicts the study's habits significantly, the time's distribution and concentration habit's, in both groups of students; also controlled motivation predicts work's habits in students of past grades. And autonomous motivation predicts vocational interests, specifically in the personal attitudes toward the career in the first grades students. On the other hand, in students of past grades, vocational interests predict study habits and reading techniques. And finally, in the last grades students' personal attitudes toward career predict habits for work and reading techniques.