An electronic device that may collect gas and provide information associated with gas, and a operating method thereof are disclosed. The electronic device may include: a gas sensor that detects gas; a processing unit that analyzes the components of detected gases so as to determine whether abnormal gas is included; and a display unit that displays the analyzed gases on a screen, and displays abnormal gas to be emphasized. A method of operating the electronic device may include: detecting gases through the gas sensor; analyzing the detected gases and analyzing whether abnormal gases exist; displaying the analyzed gases on a screen and displaying abnormal gases to be emphasized.