The　stability　of　hydrate-bearing　near-wellbore　reservoirs　is　one　of　the　key　issues　in　gas　hydrate　exploitation.　In　most　previous　investigations,　the　damage　evolution　process　of　the　sediment　structure　and　its　effect　on　near-wellbore　reservoir　stability　have　been　neglected.　Therefore,　the　damage　variable　is　introduced　into　a　multi-field　coupled　model　based　on　continuous　damage　theory　and　multi-field　coupling　theory.　A　thermo-hydro-mechanical-chemical　(THMC)　multi-field　coupling　mathematical　model　considering　damage　of　hydrate-bearing　sediments　is　established.　The　effects　of　damage　of　hydrate-bearing　sediments　on　the　thermal　field,　seepage　field,　and　mechanical　field　are　considered.　Finally,　the　distributions　of　hydrate　saturation,　pore　pressure,　damage　variable,　and　effective　stress　of　a　near-wellbore　reservoir　in　gas　hydrate　exploitation　by　depressurization　are　calculated,　and　the　stability　of　a　hydrate-bearing　near-wellbore　reservoir　is　analyzed　using　the　model.　Through　calculation　and　analysis,　it　is　found　that　structural　damage　of　hydrate-bearing　sediments　has　an　adverse　effect　on　the　stability　of　hydrate-bearing　near-wellbore　reservoirs.　The　closer　to　the　wellbore,　the　worse　the　reservoir　stability,　and　the　near-wellbore　reservoir　stability　is　the　worst　in　the　direction　of　minimum　horizontal　ground　stress.