Six heirlooms are the concentrated expression of the spiritual connotation of Daqing.

Daqing spirit was born in the world-famous Daqing oil battle in the early 1960s, and it is an important part of the Chinese national spirit. No matter in the past, present or future, Daqing spirit is the driving force to inspire people to forge ahead. Daqing spirit mainly includes: the patriotic spirit of winning glory for the country and the nation; Independent and self-reliant enterprising spirit; The scientific and realistic spirit of stressing science and "three old four strict"; The professionalism of taking the overall situation into account and sharing worries for the country.

In the oil battle in Daqing and the subsequent oilfield development and construction, Daqing people carried forward the spirit of patriotism, overcame all difficulties and worked hard with the heroic spirit of "if conditions permit, we will go even if conditions are not created", and gradually formed the revolutionary spirit of shoulder to shoulder, dry paving and five shovels. Repairing factories, recycling teams, repairing the old and utilizing the waste are important contents of Daqing's hard struggle tradition, which is called hard struggle by Daqing people.