The invention relates to a nursing bottle heated by a mobile power supply. The nursing bottle comprises a bottle body printed with vertical volume scales and volume marks and a nursing bottle cover and further comprises a base. A heating device is arranged in the base. One end of the heating device is connected with a USB interface and the USB interface can be used for plugging the mobile power supply. The nursing bottle is designed for the mobile power supply, thus liquid in the nursing bottle can be heated at any time when a user goes out for fun, goes for a walk under the sun, goes to the hospital for taking an injection, drives a car and the like. Thus, the nursing bottle does not need to be placed in other heating containers to be heated, waste of the milk left is avoided, the nursing bottle is convenient to use, free of toxics, sanitary and it is ensured that a baby can drink milk which meets the temperature requirement of the intestines and the stomach in time.