At　present,　General　Services　Administration　(GSA)　standard　method　is　widely　used　for　reference　to　analyze　progressive　collapse　of　buildings.　However,　the　criteria　of　collapse　evaluation　of　this　method　are　found　inapplicable　in　China.　Although　the　loading　on　structure　caused　by　air　shock　wave　and　the　damage　failure　of　structural　members　are　considered　in　explosive　incentive　simulation　analysis　method,　it　is　hard　to　apply　in　practical　engineering　due　to　its　computational　complexity.　In　this　paper,　a　simplified　progressive　collapse　analysis　under　explosive　loading　is　developed　by　utilizing　the　simplified　explosive　loading　to　take　account　of　the　impact　on　structure　members　caused　by　air　shock　wave,　by　applying　nonlinear　beam　element　taking　account　of　strain　rate　effect　to　structural　members,　by　adopting　the　method　of　killing　failure　element　to　take　account　of　structural　members　failure,　and　by　setting　contact　elements　among　structural　members　and　contact　elements　between　structural　members　and　the　ground　surface　to　take　account　of　the　interaction　and　load　transfer　behavior　of　structural　members　in　the　process　of　progressive　collapse.　After　comparing　with　the　explosive　incentive　simulation　analysis　method,　it　is　found　that　the　simplified　method　proposed　in　this　paper　offers　reasonable　collapse　process,　reliable　calculation　results　and　response　of　structure　under　the　impact　of　explosive　loading,　and　it　also　greatly　reduces　computational　requirements.