This　paper　reports　that　La-doped　BiFeO3　(Bi1-xLaxFeO3,　x　=　0,　0.1,　0.2,　0.3,　0.6,　0.8　and　1.0)　were　studied　by　using　micro-Raman　spectroscopy　and　x-ray　diffraction　(XRD).　The　XRD　patterns　indicate　that　the　structure　of　Bi1-xLaxFeO3　changes　from　rhombohedral　BiFeO3　to　orthorhombic　LaFeO3.　The　results　of　Raman　spectroscopy　show　good　agreement　with　the　XRD　results.　Strikingly,　the　phonon　peak　at　around　610　cm(-1)　and　the　two-phonon　peaks　in　the　high　frequency　range　exist　in　all　compounds　and　enhance　with　increasing　La　substitution.　The　increasing　intensity　of　the　610　cm(-1)　peak　is　attributed　to　the　changes　in　the　FeO6　octahedron　during　the　rhombohedral-orthorhombic　phase　transition.　The　enhancements　of　the　two-phonon　peaks　are　associated　with　the　breakdown　of　the　cycloid　spin　configuration　with　the　appearance　of　the　orthorhombic　structure.　These　results　indicate　the　existence　of　strong　spin　phonon　coupling　in　Bi1-xLaxFeO3,　which　may　provide　useful　information　for　understanding　the　effects　of　La　content　on　the　structural　and　magnetic　properties　of　Bi1-xLaxFeO3.