A water feeding device of a hot drink maker, particularly of a coffeemaker, is provided wherein a water feeding operation and a water heating time are controlled by a water temperature sensor, a computer circuit board, and a motor, all of which are installed in the hot drink maker. The motor is driven according to a sensing result obtained by sensing water temperature at a predetermined position, so as to push heated water smoothly and completely into an inlet of a brewing chamber. Thus, ground coffee in the brewing chamber is infused by the liquid-state heated water of a predetermined temperature to make a hot drink with a desirable taste.