Abstract: Various special appearances are produced by the geological effect of load, for example, landslip, mud-rock flow etc.. They have extensively been researched in engineering geology which is considered as one of the important motive forces that accelerate the earth's crust exchanging and developing for a long time. This is not only an event of realistic significance in national economy, but also an event of practical significance in research of the formation and evolution of the earth's crust. Especially, it is a necessary and an urgent matter for acelerating mountain area construction and making people in poor area live and work in peace and contentment.