The official flag ofSmolensk Oblast is adopted on 22 December 1998. the Flag of Smolensk Oblast is a rectangular red cloth with a ratio of width to length 2:3 at the bottom are two gold-yellow stripes occupying 5 percent of the flag width and dividing the flag in width into three parts in a 6:2:1 ratio. Above the flagpole there is a shortened version of the coat of arms of the Smolensk Oblast - a shield with a cap occupying 45 percent of the width and 20 percent of the flag's length, and the vertical axis of the coat of arms divides the flag in a 1:4 ratio. The flag cloth can be framed with gold fringe.
On December 10, 1998, by Decision No. 179, the Regional Duma adopted the Law "On the Coat of Arms and Flag of Smolensk Region" No. 38-z of December 22, 1998. The law entered into force on December 30.