Mainly because productive labor is that people make and use labor tools and carry out purposeful and planned labor. Through productive labor, human beings actively transform nature and create new living conditions for themselves.

At the same time, it is on the basis of productive labor that human beings have formed their own unique and extremely complicated social relations. Therefore, productive labor is the foundation of the existence and development of human society.

Productive labor is the basic category of historical materialism and the analytical basis of labor theory of value. The explanation of value creation and value determination by labor theory of value is to scientifically analyze the internal logic of commodity production labor, while the economic analysis of value operation aims to seek the support of logical consistency between specific economic theoretical systems.

Almost all the means of production and living on which human beings depend are created by labor. Through production and reproduction, human beings produce sophisticated tools and appliances, food, clothes and houses, which meet the most basic physiological needs of human beings as creatures and enable human beings to continue.

Productive labor is a living labor that creates wealth and value. Up to now, the creation and operation of value are centered on commodity production, which is essentially based on the comprehensive provision of technical conditions and material quantity relations in the labor process, establishing a direct connection between the labor process and the social production process, thus promoting the social combination of labor and production. In a word, commodity production labor has duality.