An electronic device is provided. The electronic device includes a housing including an inner space, a hole formed through the housing to the internal space, a stylus pen insertable into the internal space through the hole, wherein the stylus pen includes a first wireless communication circuit and a wireless charging receiver circuit, a wireless charging transmitter circuit positioned inside the housing and configured to provide charging to the wireless charging receiver circuit when the stylus pen is inserted into the inner space, a second wireless communication circuit positioned inside the housing, at processor operatively connected to the wireless charging transmitter circuit and the second wireless communication circuit, and at least one memory operatively connected to the processor, wherein when executed, cause the processor to detect whether the stylus pen is inserted into the inner space, and start to provide charging for a first duration.