A method of controlling an operation of a cordless vacuum cleaner includes storing information about predefined movement patterns corresponding to a plurality of control commands in a memory of the cordless vacuum cleaner, in response to detecting that docking or charging of the cordless vacuum cleaner on a station device is terminated, detecting at least one movement pattern among the predefined movement patterns by analyzing movement information obtained via at least one motion sensor, identifying at least one control command corresponding to the detected at least one movement pattern, and controlling an operation of the cordless vacuum cleaner based on the identified at least one control command.