Despite its political neutrality and impression of inconsequential revelry, in recent decades, the festival has become a stage on which politicians can show off their common touch.
Parading in dirndls, chewing pretzels and singing folk songs, these political elites will celebrate a "Germanness" so seemingly playful that it is acceptable in a country that, since the Second World War, has shied away from patriotism.
And this weekend, the images will seem more timely than ever. The ruling conservative party in Bavaria looks likely to lose thousands of votes in the state election next month to the far-right, populist Alternative for Germany (AfD), which campaigns against immigration, Islam and multiculturalism.
It also calls on ethnic Germans to have more children to prevent the eradication of the German people. "The preservation of one's own national people is a priority in politics and for every government," the party said in its manifesto for last year's federal election. Roughly one in eight Germans voted for the AfD in that election,
many of them angry about the arrival of a million refugees and migrants in 2015.
Polls predict that the Christian Social Union -- a conservative party that has mostly ruled Bavaria since the 1940s and is moving rapidly to the right on immigration in a bid to head off the AfD -- might lose its absolute majority.
But using Oktoberfest for political advantage is nothing new.
The festival has a long and unfortunate history of being used in this way. It first took place in 1810, following the wedding of Crown Prince Ludwig and Therese of Saxony-Hildburghausen. It was seen by some as an attempt by the nobility to win favor among normal Germans.
Then, in the 1930s, the Nazis renamed it the "Great German folk festival," a celebration of Aryan identity.
After the war, the festival became a politics-free space. Today, politicians of all ideological backgrounds make public appearances.
From Angela Merkel to rebel left-wing politicians such as Claudia Roth, who recently paraded her dirndl there, mainstream politicians have their pictures taken holding enormous glasses of beer, or steins.
It is remarkable that all these politicians have long felt comfortable promoting a "festival that emphasizes its German origin with strength and power in every aspect," as the official website claims.