An electronic device for displaying information related to a stylus pen is provided. The electronic device includes a wireless communication link, which is based on a short-range wireless communication protocol, with a stylus pen inserted into an inner space of a housing, detects that the stylus pen is detached from the housing, receives a signal including information about a battery state of the stylus pen from the stylus pen through the short-range wireless communication protocol, and displays a first graphical user interface (GUI) indicating the battery state, based at least on the information about the battery state.