DIL805A dilatometer was used to study the continuous cooling transformation curve (CCT curve) of ER50-6 welding wire steel, and EBSD was used to analysisthe changes of evolution rule and the texture component of the ferrite after five drawing pass along the axial deformation. The results show that, the phase transition point temperatures of ER50-6 welding wire steel is Ac1=732, Ac3=865, andthe three phase composition of ferrite (F)+bainite (B)+pearlite (P) will be get under the process conditions in this paper, ferrite grains to rotate axially with the increase of the drawing deformation, {100} 〈001〉 orientation and {100} 〈011〉 orientation are relatively stable orientations, the grain shape, size and the percentage content are maintained after deformation process; the component of {111} 〈110〉, {111} 〈112〉 which on {111} planesand {110} 〈110〉 texture increase with drawing pass. The misorientation between neighboring grains of each drawing samples subject to 0°-5° is the small-angle grain boundaries, with the increase of drawing pass. The misorientation between adjoining grains essentially unchanged, Non adjacent grain misorientation mainly distributed within the range of 45°-50°, the increase in non adjacent grain misorientation distribution transits to a greater angle after drawing passes. ©, 2014, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved.