Seismic　stress　may　cause　changes　in　the　hydraulic　characteristics　of　aquifers　and　corresponding　changes　in　the　movement　state　of　the　groundwater　flow.　In　this　study,　based　on　the　theoretical　relationship　between　the　tidal　response　of　the　well　water　level　and　an　aquifer＇s　hydraulic　characteristics,　the　hydraulic　parameters　of　an　observed　aquifer　in　the　Chongqing　area　are　estimated　through　the　tidal　response　of　the　well　water　level,　and　the　influence　of　the　Wenchuan　earthquake　on　the　hydraulic　characteristics　of　the　aquifer　and　the　movement　of　the　groundwater　is　discussed.　The　results　showed　that　the　groundwater　near　well　DZ　was　mainly　controlled　by　horizontal　flow　accompanied　by　extremely　weak　vertical　leakage,　and　the　hydraulic　conductivity　of　the　target　aquifer　calculated　using　the　tidal　radial　flow　model　was　basically　consistent　with　the　results　of　previous　pumping　tests.　Vertical　and　horizontal　flow　coexist　in　the　aquifer　system　near　wells　BB　and　BN,　and　the　specific　leakage　can　be　obtained　using　the　mixed　aquifer　model.　The　intense　tectonic　static　stress　caused　by　the　Wenchuan　earthquake　resulted　in　obvious　tensile　deformation　of　the　aquifers　near　these　three　wells,　which　became　the　main　reason　for　the　changes　in　the　well　water　level　and　the　enhanced　vertical　leakage.　In　addition,　the　rise　in　the　water　level　in　well　BN　may　have　been　related　to　its　artesian　characteristics　and　hydrogeological　conditions.　This　article　deepens　our　understanding　of　the　influence　of　seismic　stress　loading　on　groundwater　flow　in　regional　aquifers.