Due　to　the　long　duration　and　high　cost　of　traditional　pumping　tests,　the　response　of　well　water　levels　to　seismic　waves,　earth　tides,　and　barometric　pressure　provides　a　feasible　method　for　determining　continuous　changes　in　aquifer　hydraulic　parameters.　Aimed　at　the　problem　that　the　response　phase　shift　of　well　BB　water　levels　to　tide　M2　is　greater　than　that　of　tide　O1,　this　paper　preferentially　calculated　the　time　series　changes　in　S,　Be,　n,　and　BKu　based　on　the　response　mechanism　of　well　water　levels　to　barometric　pressure　and　earth　tides　with　the　help　of　the　smooth　moving　method.　Then,　by　using　the　mixed　flow　model,　the　variation　in　the　transmissivity　and　leakage　coefficient　over　time　was　simultaneously　obtained,　and　the　evolution　process　and　characteristics　of　aquifer　parameters　near　well　BB　caused　by　the　Wenchuan　earthquake　are　ultimately　discussed.　The　calculation　results　are　basically　consistent　with　the　previous　pumping　test,　and　have　been　verified　and　compared　by　using　other　scholars’　methods.　This　solving　process　avoids　problems　such　as　excessive　dependence　on　initial　values,　multiple　solutions,　and　unstable　tide　O1,　which　has　a　promoting　effect　on　the　study　of　the　impact　of　seismic　activity　on　aquifer　systems.　©　2024　by　the　authors.