Social management is not to strengthen control. It is flexible, cooperative, and interactive. This is exactly the fundamental difference between it and the traditional unit system management model, and it is also the essence of "big management. " For a long time, the unit is the society and it covers "The unit system" and "identity system" constitute the basic characteristics of social operation in the era of planned economy in our country. The state and the government manage employees and urban residents through a strict unit system and neighborhood system. The important feature of the unit system is that Controllability, closedness, and unity are typical "small managements". Perhaps, under the conditions of the time, the "unit system" had its reasonable side, but the counterpart was the shrinking of society, so that our lives In society, we are confused about "Society". What is society? Where is society? The following statements are consistent with this text:. ['"Unit system" management mode weakens people\'s understanding of society.', 'The core of social management is to promote the active participation of individuals.', 'Modern society requires the organic combination of "small management" and "big management".', 'China\'s social management model in the era of planned economy is mainly "identity system".']