I am moving to Xian for my PhD studies in August 2014. what sort of clothes I must bring in.

How long will you stay in XA? If for short period, I recommend you take along enough summer clothes, because it will be very in Aug. till early Oct. Besides, a light jacket and jeans can be taken along! If for long period, warm clothes are also needed!

There are different qualities warm clothes in the city. For the common ones, CNY100-150 or around is enough. For the branded ones, you need to spend CNY250 or more on that!

I will stay for 3 to 5 years in Xian

You are suggested to take some thin summer clothes for the hot summer and some T-shirts.
Then for other clothes, you are suggested to go to buy in the market before winter comes. The down jacket is necessary in winter.

Thank You for great advice