An electronic device and method are disclosed. The electronic device includes a communication circuit, a sensor circuit, a digitizer panel, and a processor. The processor implements the method, including: detecting whether an electronic pen is detached from the electronic device via the sensor circuit, activating the digitizer panel based on detecting detachment of the electronic pen from the electronic device, identifying a state of the electronic pen through a communication linkage with the electronic pen via the communication circuit, and deactivate the activated digitizer panel based on the identified state of the electronic pen.