Abstract: A water supply device (10) and a tube connector structure (2) thereof, which are used for an electronic device (100) having a water inlet (101) and a water outlet (102), are disclosed. The tube connector structure (2) includes a connecting plate (21) and two tube connector plugs (22) passing through and fixed to the connecting plate (21). One of the tube connector plugs (22) is connected with the water inlet (101), and the other one of the tube connector plugs (22) is connected with the water outlet (102). Therefore, advantages of rapid connection and disconnection between the water supply device (10) and the tube connector structure (2) and saving time and labor in assembling may be accomplished.