THE AIM OF THE STUDY:The aim of this study is to examine the effect of critical thinking education on nursing students' problem-solving skills. MATERIALS AND METHOD:This study was conducted with 93 nursing students, 49 in the control group and 44 in the education group. The California Critical Thinking Disposition Inventory and the Problem-solving Inventory were administered to them before and after 12 weeks of critical thinking education. RESULTS:The education group's mean critical thinking score was 253.61 on the pretest and 268.72 on the posttest. This increase was statistically significant (p < .001). The posttest mean score of the control group fell to 258.18 on the posttest after a pretest mean score of 260.79, and this difference was statistically significant (p < .001). According to the posttest results, the problem-solving skills of education group increased significantly (p < .001), while the control group's score fell significantly (p < .001). CONCLUSION:This study determined that critical thinking education improves problem-solving skills.