In　order　to　solve　the　uncertainty　problem　of　evacuation　under　the　typical　complex　disaster　scenario　of　earthquake　and　rainstorm,　the　risk　assessment　of　evacuation　was　studied.　Firstly,　based　on　the　planning　characteristics　of　China＇s　evacuation　system,　the　risk　control　objectives　of　urban　evacuation　under　the　combined　disaster　of　earthquake　and　rainstorm　were　put　forward.　Then,　considering　the　uncertainty　of　evacuation　time　and　the　evacuation　characteristics　of　earthquake⁃rainstorm　compound　disaster,　a　rapid　evaluation　model　of　urban　road　capacity　under　earthquake⁃rainstorm　compound　disaster　was　established.　Secondly,　considering　the　uncertainty　of　risk　acceptance　degree　of　different　refuge　demand　points,　the　acceptable　risk　level　coefficient　based　on　the　characteristics　of　urban　planning　land　was　put　forward.　Finally,　considering　the　uncertainty　characteristics　of　the　above　evacuation　process,　the　optimal　algorithm　was　adopted　to　calculate　the　decision⁃making　model　of　the　location　of　the　maximum　coverage　emergency　facilities,　and　the　evacuation　risk　assessment　model　based　on　earthquake　and　rainstorm　combined　disasters　was　constructed.　Taking　the　disaster　prevention　and　evacuation　responsibility　area　of　a　northern　city　as　an　empirical　object,　this　paper　probed　into　the　risk　situation　under　the　combination　of　multi⁃risk　control　objectives　and　multi⁃planning　schemes,　and　put　forward　the　planning　scheme　of　the　shelter　with　minimum　evacuation　risk　in　this　disaster　prevention　and　evacuation　responsibility　area.　The　research　shows　that　the　model　can　make　a　more　practical　evacuation　risk　assessment　for　earthquake⁃rainstorm　combined　disaster　scenarios,　realize　the　quantitative　analysis　of　uncertain　factors,　and　achieve　an　effective　connection　between　risk　assessment　and　spatial　planning.　©　2023　Fine　Chemicals.　All　rights　reserved.