Three kinds of core needs are Clayton Alderfer's core research theory. First of all, survival needs: whether a person can develop well in the society, material needs is an important prerequisite. If there are physical and safety problems, then it is difficult to stand in society. Secondly, mutual relation: whether the interpersonal relationship is properly handled is the first condition to win the respect of others. Finally, growth and development: It is not difficult to understand that demand will expand with the evolution of time, so the level of demand will also change, which is related to the realization of its own value. The specific relationship is as follows: