The following are some popular Cantonese restaurants in Xi 'an:

1. Guangdong Mansion Restaurant: Located in Guangdong Mansion, No.1 East Huancheng South Road, beilin district, Xi 'an, it is a restaurant that provides authentic Cantonese cuisine. There are a variety of dishes here, including Cantonese morning tea, roasted meat, seafood and classic Cantonese dishes, which are delicious and have a good reputation.

2. Chaoshan beef hotpot: located at No.19 Xiaozhai East Road, Yanta District, Xi 'an, it is a restaurant mainly engaged in Chaoshan beef hotpot. The beef here is fresh and tender, the hot pot soup base is delicious, and it is very popular with all kinds of vegetables and seafood.

3. Ajisen Lamian Noodles: Located at No.21 Xiaozhai West Road, Yanta District, Xi 'an, it is a restaurant offering Cantonese Lamian Noodles. The Lamian Noodles here tastes delicious, the soup base is delicious, and it is very delicious with all kinds of Cantonese dishes.

4. Shangpin Clay Pot Rice: Located at No.28 Nanguanzheng Street, beilin district, Xi 'an, it is a restaurant offering Cantonese clay pot rice. The clay pot rice here is delicious, delicious and tender, and it is very popular with various Cantonese dishes.

5. Cuihua Restaurant: Located at No.11 Xiaozhai East Road, Yanta District, Xi 'an, it is a restaurant serving Cantonese cuisine and Shaanxi cuisine. There are a variety of dishes here, including Cantonese morning tea, roasted meat, seafood and classic Cantonese dishes, which are delicious and have a good reputation.

To sum up, there are many delicious Cantonese restaurants in Xi 'an, offering authentic Cantonese cuisine and excellent service, which is worth a try.