Humor can be defined as a funny, entertaining movement or expression, anything that contributes someone to have fun or as a laughing object. As the power of humour in decreasing the stress of patients was understood, it was begun to be used as theraupatically by nurses. Humour therapy can be applied to elderly people, children and oncology and psychiatry patients as individual or group therapy. Many techniques can be used in humour therapy such as laughing exercises, comic videos, books and photographs, jokes, comic audio cassettes and comedy clips. Purpose of this study is to analyze the benefits of humour therapy, used techniques and the conducted studies about humour therapy. It has been observed in the conducted studies that humor therapy reduces the perception of loneliness experienced by patients, increases life satisfaction and it has positive effects on the quality of life and quick recovery of individuals when it is used additionally to medical treatments. Humor therapy can easily be applied by nurses as a complementary therapy in the treatment of patients. The number of national studies conducted in that field is also highly limited. For that reason, it is required the studies on the use and effects of humour therapy in nursery practices.