Man-induced sediment disasters result from sedimentation due to human activities. In this paper classification of the main types and character of man-induced sediment disasters is given. Sediment disasters are characterized as follows: (1) tendency for increased frequency as a function of China抯 geographical zones, (2) non-order characteristics resulting from blind action without special technical training, (3) gradual and sharp changes with human environment change, and (4) complexity and non-linear features. Important factors leading to man-induced sediment disasters include human environment perturbation and lack of education. After sustaining or stabilizing the environment and educating people properly, man-induced sediment disasters can be reduced. There are several effective approaches for implementing this, for instance, strengthening erosion control and sediment management methods, strictly executing the prevailing soil and water conservation law, raising people抯 understanding of the importance of environmental protection through education. Man-induced sediment disasters result from sedimentation due to human activities. In this paper classification of the main types and character of man-induced sediment disasters is given. (1) tendency for increased frequency as a function of China’s geographical zones, (2) non-order characteristics resulting from blind action without special technical training, (3) gradual and sharp changes with human environment change, and (4) complexity and non-linear features. induced sediment disasters include human environment perturbation and lack of education. After sustaining or stabilizing the environment and educating people properly, man-induced sediment disasters can be reduced. There are several effective approaches for implementing this, for instance, strengthening erosion control and sediment management methods, strictly executing the prevailing soil and water conservation law, raising people’s understan ding of the importance of environmental protection through education.