Clinical training is an essential element in nursing education, the outcomes of which are directly related to the quality of mentoring support. This quasi-experimental study aimed to examine whether the group or individual form of the mentoring approach used and the order of application of the mentoring approach contribute to the quality of mentoring support provided to students. The study comprised two measurement points with 130 nursing students, divided into two groups with different orders of application of the mentoring approach. The validated Mentoring Support Quality Evaluation Questionnaire (MSEQ) was used. Students in both groups rated the quality of mentoring support as higher following an individual mentoring approach. A significant interaction was found between the mentoring approach used and the order in which the mentoring approaches were applied ( = 0.002). The individual mentoring approach contributed significantly to a higher quality of mentoring support after the second round of clinical training ( = 0.021), while after the first round, the difference between the group and individual approaches was not as clear. The results suggest that not only the form of the mentoring approach but also the sequence of changes in the mentoring approach should be planned when implementing clinical training.