Based　on　cluster　head　gateway　switch　routing　protocol,　this　paper　proposed　an　improved　Cluster　head　Gateway　Switch　Routing　Protocol　for　the　problem　about　heavy　cluster　head　load　and　high　energy　consumption.　In　the　clustering　mechanism,　this　paper　utilizes　the　node　connectivity,　the　node　neighbor　change　rate　and　node　remaining　energy　as　the　weight　influence　factors　to　calculate　the　node　weight.　In　the　routing　protocol,　this　paper　proposes　a　hybrid　routing　protocol.　Then　this　paper　utilizes　analytical　hierarchy　process　to　calculate　the　weights　of　the　three　factors　and　obtain　the　node　weight.　Finally,　the　OMNET　experiment　is　carried　out　to　verify　the　effectiveness　of　the　improved　protocol　in　increasing　cluster　stability　and　reducing　cluster　head　load.　©　2019　IEEE.