This welding turntable is designed to meet the manufacturing requirements by using the tilting and rotation of the worktable to put the workpiece at a suitable processing angle to meet the welding requirements of valves and flanges. This welding turntable is mainly used for welding, cutting, polishing and assembly of annular workpieces. It can be equipped with a welding chuck and a gun adjustment mechanism to fix the welding position and adjust the relative position of the workpiece and the welding gun. It adopts a variable frequency speed regulation system with stable performance.