In　order　to　consider　the　effect　of　fabric　anisotropy　in　the　analysis　of　geotechnical　boundary　value　problems,　this　study　proposes　a　modified　model　based　on　a　fabric-based　modified　Cam-clay　model,　which　can　account　for　the　anisotropic　response　of　soil.　The　major　modification　of　the　original　model　aims　to　simplify　the　equations　for　numerical　implementation　by　replacing　the　SMP　strength　criterion　with　the　Lade’s　strength　criterion.　This　model　comprehensively　considers　the　inherent　anisotropy,　induced　anisotropy,　and　three-dimensional　strength　characteristics　of　soil.　The　model　is　first　numerically　implemented　using　the　elastic　trial–plastic　correction　method,　and　then　it　is　encapsulated　into　the　FLAC3D　6.0　software,　and　tested　through　conventional　triaxial,　embankment　loading,　and　tunnel　excavation　experiments.　Numerical　simulation　results　indicate　that　considering　anisotropy　and　three-dimensional　strength　in　geotechnical　engineering　analysis　is　necessary.　By　accounting　for　the　interaction　between　microstructure　and　macroscopic　anisotropy,　the　model　can　more　accurately　represent　soil　behavior,　providing　significant　advantages　for　geotechnical　analysis.　©　2025　by　the　authors.