Abstract: An improved structure of a flag elevating/descending device is disclosed. The flagpole is provided with an elevating/descending tube and a rotating tube to allow the flag to elevate/descend and to rotate. An elevating/descending driving device is provided at the flagpole head, and a driving strap is protruded from the driving device to mount with the elevating/descending tube so that the driving strap can extend outward and/or roll up and the flag will not wind around the flagpole when the flag is elevated or descended. The base seat of the flagpole is provided with an un-interrupted current device and a re-storage battery so that the device is operable even if the current supply is cut off.