The invention discloses a multi-valve body flexible welding workstation. The multi-valve body flexible welding workstation comprises a workstation base, wherein the workstation base is provided with awelding tool, a first clamp tool, a second clamp tool and a third clamp tool, and the first clamp tool, the second clamp tool and the third clamp tool are arranged around the welding tool; the firstclamp tool is used for clamping a workpiece to be welded on one side; the second clamp tool is used for clamping a workpiece to be welded on the inner annular surface; the third clamp tool is used forclamping a workpiece to be welded in all directions; and an electrical integration station for controlling the aforementioned components is further arranged on the workstation base. The multi-valve body flexible welding work station can adapt to valve bodies with different specifications, and can clamp the valve bodies at the same time for automatic welding, so that the production efficiency is greatly improved, and the welding precision is ensured.