Purpose: The purpose of this study was to understand the adaptation process of male students in colleges of nursing. Method: The data were collected by individual in-depth interview with 12 male students in their final year of nursing and were analyzed using grounded theory methodology. Results: Male nursing students were experienced a process of 'Come into the world again through overcoming gender differences'. 'The adaptation process advanced in 4 stages, 'introduction period' 'shaking period' 'meditation period' and 'adjustment period' Conclusion: Specific strategies should be developed to aid the adaptation of male students in colleges of nursing.