Abstract: Under the recent influence of increasing intensity and frequency of rainfall and earthquake events, the slope failure events become one of the major hazards that produce major impact to human society. A cloud database platform of integrated visualization for life-cycle prevention and safety monitoring of slope hazards incorporates environment data to provide macro scale environmental information, and to establish the monitoring service for the slope hazards based on wireless sensor network (WSN). In order to provide sufficient visualized slope monitoring information, a 3-dimensional (3D) slope model is established for each individual project with underground monitoring information. The 3D model can also demonstrate data variation with various time steps to form a 4D (3D plus time) model. Combined with the data visualization and extreme event alerts, it can support various users before, during, and after the slope hazard events.