In 2021, a geological hazard risk survey project has been carried out in Linyi city. Based on the existing geological hazard survey results, information quantity model method has been used to calculatie and evaluate. The spatial analysis function of GIS has been used to perform spatial overlay analysis on the evaluation impact factor layers. The natural break method in statistics has been used to partition the susceptibility of landslides, landslides and debris flows in mountainous areas. Combining with the distribution map of landslide flow development and the statistics of landslide flow disasters that have occurred in the past 20 years, local correction of maps have been carried out. Based on spatial differences of main triggering factors of geological disasters (earthquakes or heavy precipitation), taking into account geological hazard risk and the vulnerability of the disaster bearing body, geological hazard risk has been divided. It will provide a basic basis for the prevention and control management of geological disasters in Linyi city.