For the Shandong city formerly known as Zouxian, see
Zoucheng.
Zouxian (Chinese: 走线; pinyin: zǒuxiàn; lit. 'walk the route') is the phenomenon of Chinese migrants entering the United States through its southwestern border with Mexico. The phenomenon became more prominent in the early 2020s. In 2021, at the Darién gap, the Panamanian police counted 200 Chinese migrants; in contrast, in the first half of 2022, close to 9,000 Chinese migrants made the crossing. The number of such immigrants declined significantly in 2025 during the second presidency of Donald Trump, with only 80 Chinese nationals crossing the border in July 2025.