Due to the problem of unemployment of adverse effects at all levels of social , economic and political in could threaten the stability of societies , so it was necessary to work to find solutions to this serious problem , small and medium enterprises was one of these solutions to meet them , and the importance of this matter dealt with the pages of this paper the concept of unemployment defined as the types and causes of it in the first section , the concept of small and medium enterprises in terms of the various definitions , characteristics and their importance and their role in reducing the worsening problem of unemployment , in the second topic of it.