Wireless power transmission is a technology that can transmit electric energy between electric source and load without any physical contact．With the gradual popularization of this technology，magnetically coupled resonant radio energy transmission has come into people’s view due to its high efficiency of medium and short distance transmission．A research device is designed and made based on the principle of magnetic coupling resonance．Firstly，the relationship between energy distribution and coil distance and angle under the condition of magnetic coupling resonance is analyzed，and the image of energy distribution rule in space is obtained based on the above relationship．