First of all, you must take the airport bus to the central square, whether you are from Xining or not, and you will know when you arrive. There is a super-large square with landmark buildings around it, such as Xining Stadium and Wangfujing, which is easy to find. Then, take bus No.82, No.9, 16 104 and No.24 at the bus stop downstairs in Wangfujing, and get off at Normal University Station! But if you have more money, you can take a taxi at the airport and go directly, but killing you is not negotiable! I hope the answer will help you.