Abstract: Labor is the beginning of the formation of human beings’ essence and the basis of its development.From human beings’ natural attribute, their essence is the one created by labor.Also,labor is pregnant with the essence of labor and creation.No matter what human’s natural attribute shows at the specific social form,it is the reflection and embodiment of human’s essence of labor and creation under different social conditions.Human’s essence is a developing historical process.The liberation of labor is just the one of human’s essense.Human beings are the social existence engaging in labor and creation.Human’s essence is labor and creation.Human beings will walk towards the aim of overall and free development.