The　air　supported　membrane　structure　is　a　typical　nonlinear　flexible　long-span　space　structure,　the　wind-induced　drift　and　the　resulting　accumulation　and　distribution　of　snow　particles　on　the　structure　may　be　the　primary　design　concern　among　all　loads　in　heavy-snowfall　region.　Thus,　an　accurate　prediction　of　snow　distribution　on　membrane　surface　is　vital　to　structural　design.　A　numerical　simulation　method　is　used　to　estimate　snowdrift　in　this　paper.　Based　on　Euler-Euler　method　in　multi-phase　flow　theory,　this　numerical　model　adopted　Mixture　model　and　combined　with　the　snow　deposition　and　erosion　model,　the　snowdrift　on　an　air-supported　membrane　coal　shed　is　simulated,　the　distribution　factor　for　roof　snow　load　is　given　under　different　wind　speed　and　different　directions　to　estimate　the　worst　load　case,　snow　load　on　the　air-supported　membrane　structure　is　significantly　affected　by　snowdrift　which　causes　significant　non-uniform　snow　load.　Furthermore,　the　response　analysis　of　the　air-supported　membrane　structure　under　snow　load　is　studied,　for　comparison,　uniform　snow　load　case,　non-uniform　snow　load　case,　and　simulated　snow　load　case　under　0°　wind　direction　are　all　considered.　The　results　show　that　non-uniform　snow　load　caused　by　snow　drifting　is　more　dangerous　and　should　be　considered.　©　The　Author(s)　2022.