In　this　work,　a　constitutive　model　is　developed　to　consider　the　effect　of　arbitrary　fiber　distribution　on　the　swelling　and　tensile　deformations　of　fiber-reinforced　hydrogels.　In　the　model,　the　free　energy　of　total　system　is　divided　into　two　parts,　i.e.,　the　hydrogel　contribution　and　fiber　phase　one.　For　hydrogel　subsystem,　we　adopt　the　hydrogel　free　energy　function　of　Flory-Rehner　so　that　the　swelling　characteristic　of　hydrogel　can　be　well　captured;　for　the　fiber,　a　statistical　method　is　used　to　construct　its　free　energy　function.　To　effectively　model　the　effect　of　fiber　distribution,　a　principal　invariant　and　dispersion　coefficient　are　introduced　so　that　the　quantitative　relationship　between　fiber　distribution　and　anisotropy　of　material　can　be　well　described.　Furthermore,　through　the　analytical　method　or　finite　element　implementation,　both　the　swelling　and　tensile　deformations　of　hydrogel　composites　with　different　fiber　distributions　are　investigated.　The　modeling　results　show　that　the　model　can　not　only　quantitatively　predict　the　swelling　and　tensile　deformations,　but　also　can　capture　the　effect　of　fiber　distribution　on　the　mechanical　response　of　hydrogel　composites.　The　new　model　may　be　helpful　to　the　design　and　optimization　of　hydrogel　composites.