Abstract.As an important indicator of employees' psychological contract and organizational trust, psychological safety is a kind of safety awareness based on the psychological climate of certain events in organization, current scholars generally divided it into three levels: individual, group, organizational psychological safety. Its influencing factors can be divided into individual factors, interpersonal factors, leadership features and organizational context four aspects;its main outcome variables conclude the knowledge sharing, voice, innovation, job involvement and job performance. Finally, the study points out the shortcomings of existing research and future research directions.

Time 1 reduced the head teachers' negotiation management behavior, decreased the closeness of the teacher-student relationship, and increased the conflicts of the teacher-student relationship at Time 2, which further affected the students' externalizing problem behaviors, the teacher-student relationship, and the head teacher's negotiation management behavior at Time 3.These observations deepen the understanding of the complex reciprocal relationships between head teachers' negotiation management behavior and teacher-student relationship and primary school students' externalizing problem behaviors from grade four to six in China. Additionally, the findings have important implications for preventing and intervening in students' externalizing problem behaviors. The results reflect that the head teachers need to be aware of the negative "driver" role of students' externalizing problem behaviors, and consciously use the positive "driver" role of negotiation management behavior to break the negative cycle driven by students' externalizing problem behaviors.