Does the second phase of Chengdu Capital International City belong to Baohe Street?

Belong to. According to Baidu map, the second phase of Chengdu Capital International City is within the jurisdiction of Baohe Street, so it belongs to Baohe Street. Chengdu, referred to as "Rong" for short, is also called Rongcheng and Jincheng. Located in the middle of Sichuan Province, Chengdu is the capital and sub-provincial city of Sichuan Province, and one of the first national historical and cultural cities in China.