I reach Qingdao Airport 2 pm in afternoon and i have flight again in morning 6 am.

Hi, dear! You may stay at Qiulin Hotel. It is located at No. 81, Minhang Road. It is adjacent to the airport, and provides free pick up service. The hotel provides clean environment and nice service. You will have a good rest there! It costs about CNY 300 per night. The reservation hotline is 86-0532-84717888 . Have a try!