The autoamtic welding manipulator,which can be widely used for welding large simplified and structure workpiece,is an automatic high efficiency auxiliary welding machine.it can weld longitudinal seam by horizontal beam retractable head(welding gun) or weld circular seam by moving the head on the horizontal beam to a certain place and turning the workpiece by positioner.it usually works with turning rolls,positioner,welding machine or other equipments to process relative work.