This research aims to determine the relationship between school principals' problem-solving skills, burnout levels and self-efficacy beliefs. A quantitative relational design was used in the study. The sample of the research consists of 224 school principals working in Balikesir. In the research, "Problem-solving Inventory", "Freidman School Principals Burnout Scale" and "School Principals' Efficacy Perceptions Scale" were used as the data collection tools. Data were analyzed by T-test, Single-factor Analysis of Variance (ANOVA), and structural equation modeling. In the research, it was found that school principals' problem-solving skills were at a high level and they almost never experienced burnout and their self-efficacy perceptions were at a high level. The results of the study revealed that there was no significant difference between principals' problem-solving skills, burnout levels, and self-efficacy beliefs and variables such as gender, experience as a principal, and school level. In the study, there was also a low and negative correlation between principals' problem-solving skills and self-efficacy beliefs, self-efficacy beliefs and burnout level, and there was a positive and low relationship between principals' problem-solving skills and burnout level.