Abstract: When self-concept stabilization is threatened, people sometimes adopt the self-definition means to cope. When individual is in the face of threatening information, mnemic neglect represents a selective nature of self-protection, restricting the information to elaborate process, and then preserves a positive self. When individual receives a feedback of the self-difference, self-immunization works strategically by adaptively changing the subjective operationalization of personal traits, viz. skills that individuals believe themselves to be good at are conceived as highly diagnostic, whereas skills that persons do not believe they possess are considered less diagnostic. The article approached the current studies through cognitive mechanism; it also introduced and discussed the two self-protective processes from three aspects: summarization, method and farther research, and was in hope that further concern of the new advances in self-protective mechanisms study could be aroused

Key words: self, self-protective mechanisms, mnemic neglect, self-immunization