A water supply device with double supply modes contains: a body, a shifting mechanism, and a magnetic attraction device. The body includes an inflow channel, a water distributing cavity, a first outflow channel and a second outflow channel. The shifting mechanism includes a press button, a distribution core having a connecting portion and a closing portion, the closing portion moves between a first closing portion and a second closing portion reciprocatingly after the press button is pressed. The magnetic attraction device includes a first attracting element and a second attracting element which magnetically attract each other. The first attracting element is disposed on the shifting mechanism, and the second attracting element is mounted in the body opposite to the first attracting element; and the first attracting element moves to the first closing position or the second closing position with the distribution core.