is there any hotel/vendor near CTGU Yichang who can provide pure vegetarian food.

As far as I konw, there is a restaurant named Vegean Restaurant. It provides delicious vegetarian foods. You can go and see. It's located at 4th floor, CBD Center Shopping Mall, no.58, Yiling Road, Xiling District.

The distance between your university and the restaurant is 3.4 miles. You can take a taxi tob arrive directly, Or take public bus no. 16, and get off Computer Market Station. After arriving, just walk to the restaurant directly.