Texture evolution during cold drawing of 6063 (Al-0.7%Mg-0.4%Si) tube is investigated. The experimental texture is measured with X-ray and EBSD together. The initial tube is made by hot extrusion and it has texture gradient through thickness direction. The inner and outer surfaces of initial tube have similar textures, but the center part has different textures. These texture gradients are decreasing during cold drawing. The overall texture of tube through thickness is measured with the stacking specimens of several tube pieces in X-ray. This result shows that overall texture of tube is similar to that of center part of tube. Characterization of EBSD data shows that the grain size is decreasing and the low angle grain boundaries are increasing during drawing. These come from the subdivision of grains during deformation. Lattice rotation field shows that drawing deformation in tube is related to rolling, and rotated cube {100}<011> is convergent and stable. With FEM analysis, the friction and reduction effects on textures are investigated. FEM analysis and crystal plasticity model predict texture evolutions reasonably.