This　paper　focuses　on　the　influence　of　permeability　anisotropy　of　seepage　flow　on　the　face　stability　for　a　shied　tunnel.　An　analytical　model　has　been　proposed　to　present　the　hydraulic　head　distribution　around　the　tunnel　face　in　the　anisotropic　ground,　considering　the　difference　of　permeability　coefficient　in　the　horizontal　direction　and　the　vertical　direction.　The　rationality　of　the　proposed　model　is　ver-ified　by　a　series　of　numerical　simulations.　Then,　an　analytical　model　of　face　stability　for　a　tunnel　under　the　anisotropic　seepage　has　been　established　based　on　the　limit　analysis　upper　bound　method.　Comparisons　of　the　analytical　solutions　and　the　numerical　simulations　are　conducted,　and　the　limit　support　pressure　of　the　two　methods　is　consistent.　The　effect　of　permeability　anisotropy　and　water　pressure　on　the　stability　of　the　tunnel　face　is　analyzed　through　the　three-dimensional　analytical　solution.　Anisotropy　of　permeability　has　a　significant　impact　on　the　stability　of　the　tunnel　face,　and　its　impact　gradually　decreases.　It　can　also　be　found　that　the　water　pressure　coefficient　of　the　tunnel　face　has　a　significant　effect　on　the　limit　support　pressure　and　the　failure　area　when　the　ratio　of　the　horizontal　permeability　to　the　vertical　permeability　is　large.