Chinese Premier Wen Jiabao (2nd R) trims vegetables with a canteen worker as he visits a construction site of Beijing subway in Beijing.

Arriving at the construction site of the metro route No.9 along the capital's southern fourth-ring road, Wen wished workers festival happiness and encouraged them to "care and help each other like brothers." Part of the north-south metro line is due to open within this year.

How long have you been in Beijing?" Wen asked one of the migrant workers.

"Ten years," the worker replied.

"Then you've already a Beijinger," Wen said.

While visiting the construction site, Wen asked detailed questions about the metro construction progress.