Immersion water cooling system and method thereof

An immersion water cooling system for a server cabinet is provided. The cooling system includes a plurality of server boxes, a cooling tank and a plurality of liquid pipes. The server box includes an electronic device immersed in the cooling liquid. The electronic device generates heat energy during operation and part of the cooling liquid evaporates into hot vapor. The cooling tank is connected to a plurality of server boxes and includes a condenser and a water storage part. The condenser is connected to a vent hole of the server box and condenses the hot vapor from the server box to form a cooling liquid. The water storage part stores the cooling liquid from the condenser, and a first end and a second end of the liquid pipe are respectively connected to the bottom of the water storage part and the bottom of the server box. The cooling liquid in the water storage part and the cooling liquid in the server box maintain the same liquid level.