Cai Xiang is grouped with Su Shi
苏轼 (Sū Shì), Huang Tingjian
黄庭坚 (Huáng Tíngjiān), and Mi Fu
米芾 (Mǐ Fú) as the
宋四家 (Sòng Sì Jiā, 'Four Masters of the Song'). He also designed the Wan'an Bridge
万安桥 in Quanzhou and wrote
茶录 (Chá Lù), an early treatise on tea.