In　this　paper,　the　results　of　finite　element　analyses　of　a　single-layer　cylindrical　latticed　shell　under　severe　earthquake　are　presented.　A　3D　Finite　Element　model　using　fiber　beam　elements　is　used　to　investigate　the　collapse　mechanism　of　this　type　of　shell.　The　failure　criteria　of　structural　members　are　simulated　based　on　the　theory　of　damage　accumulation.　Severe　earthquakes　with　peak　ground　acceleration　(PGA)　values　of　0.5　g　are　applied　to　the　shell.　The　stress　and　deformation　of　the　shell　are　studied　in　detail.　A　three-stage　collapse　mechanism　＂double-diagonal　-members-failure-belt＂　of　this　type　of　structure　is　discovered.　Based　on　the　analysis　results,　measures　to　mitigate　the　collapse　of　this　type　of　structure　are　recommended.