Quality of work life is important for teachers for facing various situations and conditions at school. This study aims to determine the improvement of quality of work life through positive thinking training. The subject of this research is 14 teachers in X high school Yogyakarta. The design used was Pre-test-Post-test Control Group. The data was collected using the quality of work life scale then analyzed using Wilcoxon test and Mann whitney test. Based on the Wilcoxon test results found Z = -2,200 (p <0.05), meaning there is a difference in the quality of work life scores between before being given positive thinking training and after being given positive thinking training. Based of Mann-Whitney test result found Z= -3, 148 (p<0,05), meaning there is a difference in scores between experimental groups and the control group. The gain score in the experimental group using the Mann-Whitney test was p = 0.001 (p <0.01), meaning that the experimental group had a significant change compared to the control group. The experimental group had a higher quality of work life value (mean = 71.71) than the control group (mean = 59.14). The results is positive thinking training can improve the teachers’ quality of work life of in high school X Yogyakarta.

Keywords: Positive Thininking Training, Quality of Work Life