Abstract:Mafic rocks hidden located in north area of Jinan City, which scattered outcrops of buttes and hills, and forms famous landscapes as "Qi yan Jiu dian". Yaoshan mountain is located in mid-west, and mainly consist of diorite and gabbro. It is blocky structure, developed joint fissures, and likely ball-shaped weathering in air-like rock which will be constituting a geological disasters of collapse hazards. Combining with combined features of the Jinan Yaoshan risk rock, this article puts forward different treatment methods to control collapse geologic hazards in order to protect people's life and property safety, provide a reference of geological hazard control for similar areas as well.