The invention relates to a control method of a universal conversion integrated waterway module. A welding clamp water inlet pagoda head (1) and a fluid distribution block (11) are connected through a welding clamp water inlet pipe; a total water return pagoda head (2) and the fluid distribution block (11) are connected through a total water return pipe; a welding clamp water return pagoda head (3) and the fluid distribution block (11) are connected through a welding clamp water return pipe; and a total water inlet pagoda head (4) and the fluid distribution block (11) are connected through a combination valve (13). The control method monitors each cooling water transfer heat to calculate if the next heat exchange accords with the requirements, and increases the heat transfer quantity by using modes of increasing the flowing speed and cooling by cooling water when the next heat exchanger cannot be qualified, so that the energy can be saved, and the welding clamp welding quality is guaranteed.