Abstract: According to "Mozi" ,in the Warring States period, the state of the people's livelihood is that the hungry had no food to eat, the cold had no clothes to wear, the fatigue had no rest. Monist members came from the bottom of the society, so it is not strange that the focus of the homology is mainly livelihood. As to the human essence, Monist thought that labor was human nature, and emphasized that "people only can exist through their force, or will be hungry", and it also pointed out that labor was the fundamental way to solve the people's livelihood; On the relations between human and nature, Monist emphasized the human force and opposed the fatalism, and thought that human force was the important means to improve people's livelihood; In the interpersonal relationship, Monist called on the whole society to practice all-embracing love, providing a peaceful and harmonious social environment for the livelihood; On human rights , Monist advocated that the people should enjoy the rights of the economy, politics, and education equally, providing the specific programs to solve people's livelihood problems. In conclusion, the people's livelihood is a masterstroke throughout Monist'homology.