Preparation method of microelement water

The invention provides a preparation method of microelement water. The preparation method mainly comprises the following steps of: heating and boiling pure water so as to form high-temperature water through a cool-heat-exchanger; guiding the high-temperature water into an ore element granule region through guiding pipes, wherein ore element granules are arranged in the ore element granule region, the ore element granules are prepared by the steps of grinding various ore into powder, mixing the grinded powder, and pressurizing the mixed powder into granules, so that microelements in the ore element granules dissolve in the high-temperature water, and high-temperature water with microelements is formed through the microelements and the high-temperature water; then guiding the high-temperature water with the microelements into a high-speed cooler through the guiding pipes, and rapidly cooling the high-temperature water with the microelements so as to form the microelement water; and finally, guiding the microelement water into a water storing region through the guiding pipes for storage, wherein the microelement water stored in the water storing region is supplied for people to drink.