Abstract: The present invention relates to an electronic pen using a super capacitor as a power supply which comprising a housing, a power supply, and a nib arranged at one end of the housing, a boosting circuit connected with the power supply for implementing a boosting process to an output voltage of the power supply based on an external triggering signal, an oscillation circuit for generating electromagnetic waves with different frequencies based on the voltage provided by the boosting circuit, wherein, the power supply is a super capacitor. By using a super capacitor as a power supply, the present invention brings no pollutions in the constitution of the raw material, and in the processes of production, using, storing and disassembling, so it is a perfect environmentally friendly power supply. Moreover, the super capacitor can be recycling used, so the cost is greatly reduced. Using the super capacitor as a power supply, the charging rate is fast, only several minutes even tens of seconds are needed for charging.