The problem of crime is a microcosm of social problems.The control of crime and the prevention and control of repeated crimes are related to the stability of social order and individual living state.It is an important response to prevent and control crimes and repeated crimes from the perspective of prisoner composition in the period of social transformation of our country.Based on the characteristic that prisoners come from social bottom and underprivileged groups gradually showed since the 1990 s,we should also adjust social prevention and control of crimes and repeated crimes in order to me...