Fun things to do at night at Jiajiang County Food Street include food tasting, night markets, and performances.

1. Food tasting: Jiajiang County Haochi Street has a variety of snacks and delicacies. You can taste local specialties, such as Jiajiang rice noodles, bean curd, barbecue, etc.

2. Visit the night market: There are many small vendors in Jiajiang County Haochi Street. There is a night market in the evening, where you can browse the small stalls and buy some gadgets.

3. Watch performances: Jiajiang County Haochi Street has a performance area, and there will be various performance activities in the evening, such as hip-hop, acrobatics, magic, etc.