Purpose: Today, mindfulness become popular in medicine, psychology, physical education and so on. Mindfulness-based course began to be used in the educational field's formal curriculum. Many researches show that mindfulness-based class increase a lot of psychological qualities. Positive psychological capital is the state of personal positive psychological development and contributes to individual productivity. There are some studies, proving mindfulness-based interventions influenced on subfactors of positive psychological capital. This study tried to test whether mindfulness-based course could change the student's positive psychological capital. Methods: 164 participants were divided into 3 groups. Fifty-five were assigned to mindfulness based subjects as experiment group, 54 participants to yoga class, and 55 to general cultural subject as control group. During a semester, three classes were proceeded and some scales, including positive psychological capital, positive and negative emotions, and mindfulness were administered at pretest and posttest. Results: Significant differences were observed in all variables. Positive psychological capital, positive emotion, and mindfulness in mindfulness and yoga classes increased significantly and negative emotion in both classes decreased significantly, compared to control group. Conclusion: As a result, mindfulness-based class and yoga-based class could increase positive psychological capital and it is promising that mindfulness-based class can be included in curriculum.