Abstract: Aimed at the disadvantages of the traditional energy supply, a method to transfer energy by microstrip antennas was proposed. The characteristics of microstrip antennas were introduced, and the microstrip antenna used in a monitoring system was designed. An experiment for the microstrip antenna was carried out. Its attenuation of transmission, efficiency and matching conditions were analyzed. It was shown that under the conditions of close range and low power, using microstrip antennas to transfer energy is feasible.