An article from the Atlanta Journal-Constitution shows Abrams torching the flag in a photograph. Protesters who consider such monuments to be symbols of Southern heritage have since targeted her at campaign stops across Georgia. "Burn, baby, burn!" No arrests reportedly occurred at the protest.
Brian Kemp, Georgia Secretary of State and Ms Abrams" opponent, has painted her as "too radical' for governor.
Abrams' campaign released a statement on Monday addressing her flag burning, noting that Georgia's flag at the time partially incorporated the Confederate battle flag.
The Democrat candidate for Georgia governor once helped burn the state flag as part of a protest, it has emerged.
The statement continued by highlighting Abrams' long career in local politics.
"Abrams' time in public service as deputy city attorney and as a state legislative leader have all been focused on bringing people together to solve problems".
After the white nationalist rallies in Charlottesville, Virginia, in August 2017, Abrams advocated for the removal of a massive cliff-side carving on Stone Mountain near Atlanta, the largest Confederate monument anywhere.
Mr Kemp defended the artwork as an historical relic.
It was not immediately clear what effect Monday's sudden revelation would have on the gubernatorial race. A recent poll from the AJC/Channel 2 puts Abrams and Kemp within two points of each other, reinforcing many political analysts' prediction of the Peach State turning purple.
At the time of the protest in 1992, the state's flag contained the Confederate battle flag emblem, which had been a prominent feature of the state flag since it was adopted in 1956, when the battle over desegregation was raging in the South.
The Confederate battle flag emblem wasn't fully removed from the state's flag until 2003.
As a result, 53,000 voter registration applications, 70 percent African American, have suspiciously been put on hold in Georgia due to minor issues like misspellings and names not exactly matching up.