In this paper, the causes and processes of geological disasters caused by the collapse of Daigu landform in the central and southern regions of Shandong province have been analyzed. It is pointed out that this type of geological disaster has typical characteristics, such as large block size, fast speed, strong impact force, long impact distance, and larger impact range as it moves downwards. On this basis, prevention and control measures have been summarized and proposed, such as construction rock interception engineering, dangerous rock body cleaning, reinforcement of fractured rock mass, support embedding, and slope greening. At the same time, monitoring and prevention should be strengthened, the suspended area at the bottom of the top edge of the mountain, the degree of crack development at the top of the mountain, and the distribution of dangerous rock masses at the edge of the mountain should be timely identified in order to prevent the occurrence of collapse geological disasters to the greatest extent possible.