Global　air　transport　carries　about　4.3　billion　pieces　of　baggage　each　year,　and　up　to　56　percent　of　travellers　prefer　obtaining　real-time　baggage　tracking　information　throughout　their　trip.　However,　the　traditional　baggage　tracking　scheme　is　generally　based　on　optical　scanning　and　centralized　storage　systems,　which　suffers　from　low　efficiency　and　information　leakage.　In　this　paper,　a　blockchain　and　edge　computing-based　Internet　of　Things　(IoT)　system　for　tracking　of　airport　baggage　(BEI-TAB)　is　proposed.　Through　the　combination　of　radio　frequency　identification　technology　(RFID)　and　blockchain,　real-time　baggage　processing　information　is　automatically　stored　in　blockchain.　In　addition,　we　deploy　Interplanetary　File　System　(IPFS)　at　edge　nodes　with　ciphertext　policy　attribute-based　encryption　(CP-ABE)　to　store　basic　baggage　information.　Only　hash　values　returned　by　the　IPFS　network　are　kept　in　blockchain,　enhancing　the　scalability　of　the　system.　Furthermore,　a　multichannel　scheme　is　designed　to　realize　the　physical　isolation　of　data　and　to　rapidly　process　multiple　types　of　data　and　business　requirements　in　parallel.　To　the　best　of　our　knowledge,　it　is　the　first　architecture　that　integrates　RFID,　IPFS,　and　CP-ABE　with　blockchain　technologies　to　facilitate　secure,　decentralized,　and　real-time　characteristics　for　storing　and　sharing　data　for　baggage　tracking.　We　have　deployed　a　testbed　with　both　software　and　hardware　to　evaluate　the　proposed　system,　considering　the　performances　of　transaction　processing　time　and　speed.　In　addition,　based　on　the　characteristics　of　consortium　blockchain,　we　improved　the　practical　Byzantine　fault　tolerance　(PBFT)　consensus　protocol,　which　introduced　the　node　credit　score　mechanism　and　cooperated　with　the　simplified　consistency　protocol.　Experimental　results　show　that　the　credit　score-based　PBFT　consensus　(CSPBFT)　can　shorten　transaction　delay　and　improve　the　long-term　running　efficiency　of　the　system.