Cooperatives members as well as its managers’ life satisfaction are important output for its management performance. Cooperative managers, who have personality traits such as altruism and self-control, tend to have more life satisfaction at their working environment. One of the essential principles of cooperative is organizational citizenship behavior, will help the managers to linking altruism and self-control to their life satisfaction. Cooperative managers who have altruism and good self-control tend to have organizational behavior, so they are more willing to help each other, improving their work performance, and solving problems at the workplace together, thus creating a positive working environment. A positive working environment will make people more satisfied with their life. A cross-sectional design was established and 130 cooperatives managers were selected with snowball sampling among 39 cooperatives in Yogyakarta. Quantitative data were collected by questionnaires and analyzed by using PLS-SEM. The results indicated that organizational citizenship behavior has positive effect on life satisfaction. Altruism and self-control both have positive effect on organizational citizenship behavior and organizational citizenship behavior partially mediates the effect of both altruism and self-control on life satisfaction.