Purpose: It was aimed to examine the relationship between positive teacher characteristics and teachers' career adaptability and the strategies they use to increase happiness. Design/Methodology/Approach: In the study, the relationships between the variables were analyzed using descriptive statistics, correlation analysis and multiple regression analysis techniques. The research was conducted with teachers working in various public secondary education institutions. The gender of the teachers participating in the study is 180 female and 58 male. The ages of the teachers are between 24 and 50. Their average age is 32.07. The study's data were collected through the "Positive Teacher Scale, Career Adaptability Scale and Happiness Increasing Strategies Scale." Findings: According to the results of the research, it was seen that positive teacher characteristics were positively related to career exploration, responding positively to the environment, and using mental control strategies. Highlights: On the other hand, there is a negative relationship between positive teacher characteristics and the increased happiness strategy of resting the body. In order to develop positive teacher qualities, specific happiness-increasing strategies and career exploration might be used.