The　influence　of　trace　rare　earth　element　Erbium　on　the　texture　of　1420　alloys　was　investigated　by　X-ray　diffraction,　optical　microstructure　tester　and　TEM.　The　results　show　that　the　deformation　texture　of　1420　alloy　plate　is　enhanced　with　trace　Er　added　in,　and　the　enhancement　of　brass　texture　B{O11}　less　than　or　equal　211　＞　is　the　most　prominent,　which　is　attributed　mainly　to　the　effect　of　Er　on　decreasing　fault　energy　of　1420　alloy　and　the　high　interaction　energy　between　Er　and　dislocation.　And　the　recrystallization　inhibiting　and　grain　refining　effects　of　Er　are　helpful　to　the　formation　and　maintenance　of　the　deformation　texture　as　well.