Digital drawing electronic pen, digital drawing system and using method thereof

The invention discloses a digital drawing electronic pen which comprises a pen body and at least one sensing component; the sensing component is arranged on the pen body; and when a user rotates the drawing electronic pen, or presses the drawing electronic pen, or changes the angle between the drawing electronic pen and a plane, or changes the holding position of the drawing electronic pen, or slides fingers to change the finger position to the position of the drawing electronic pen, at least one sensing signal is generated to change the color, or the brush type or the brush thickness of the digital drawing electronic pen. Therefore, under the condition that a button and a switching switch are not used, the color, the brush type and the brush thickness of the digital drawing electronic pen can be changed so as to achieve intuitive drawing effect.