Take the airport bus (airport-Haitian hotel special line) 70 1 bus, and the fare is 15 yuan.
From Qingdao University, take the bus 1 1 (Haiyou Road-Taidong), and the fare is 1 yuan, and arrive at Fuzhou Road. Then transfer to 70 1 (airport bus) at Fuzhou Road.
The airport bus (Haitian Hotel-Airport) leaves at 6: 00 in the morning and runs every half hour thereafter. Catch the 6 o'clock flight. It takes 45-60 minutes to get to the airport. Arrive at 7 o'clock at the latest. I'm sure it's no problem.
It's best to check the station in advance and transfer to the airport bus. Don't miss the station. Go and wait for the bus early. If you miss 6: 00, you have to wait until 6: 30, so time is tight.
If you want to take a bus. There are lines, but the time control is not good. You'd better not take risks, after all, your time is too early.