CCTV footage has captured the dramatic moment a police officer pulled a little boy out of rush hour traffic as he rode his toy car on a busy road.

Oncoming traffic swerved to avoid injuring the three-year-old as he slowly moved up the road in Lishui City, eastern China.

Police officer Wu Feng spotted the boy on his way to work and immediately rushed to help him.

"When I rode out of the gate, I saw a little kid on the road riding in his toy car through the traffic," he said.

"It was very dangerous with many big vehicles around him. So without a second thought I rushed to the kid immediately and took him to the side of the road."

The officer later reunited the boy to his mother unharmed.