Is it free to drink beer in beer city during Tsingtao Beer Festival?

Yes, there will be many beer manufacturers doing activities and publicity on the spot during the period. Of course, you can enjoy your beer ~ and attach the information of Oktoberfest:

Qingdao International Beer Festival was founded in 199 1 year and opened on the second weekend of August every year. It is the golden tourist season in Qingdao and lasts for 16 days. The art festival is jointly sponsored by the relevant state ministries and commissions and the Qingdao Municipal People's Government. It is a national-level large-scale festival that integrates tourism, culture, sports and economy. The theme slogan of Oktoberfest is "Cheers to Qingdao and the world!" .