Located in northeast China's Heilongjiang Province, Daqing Oilfield is the largest oilfield in China. It was discovered in 1959. The development of Daqing Oilfield has changed the backwardness of China's oil industry and made a difference to China's industrial development.

In 1960, the "Iron Man" Wang Jinxi led a group of people here to develop the Daqing Oilfield. Now the "Iron Man" spirit does not stand for one person, but for all workers of Daqing Oilfield.