Cognitive models of social phobia, such as Schema theory of social phobia, model of social phobia，and cognitive-behavioral model of social phobia, suggested that social phobia results from the dysfunctional self-schema. According to these theories, social phobia is developed and maintained due to schema containing dysfunctional beliefs that individuals with social phobia hold about themselves and expectations of how they believe they should behave in situations of social interaction. In order to explore whether the individuals with social phobia have dysfunctional self-schema, 40 high social phobia individuals(HSPIs) and 30 low social phobia individuals(LSPIs) were asked to response to the self-esteem scale and complete the implicit association task. The result showed that HSPIs had lower scores on the self-esteem scale than LSPIs, but they all have positive implicit self-esteem, and had no significant difference on IAT. The results did not support the cognitive models of social phobia. It is discussed in term of the self-presentation, Human have a general need to be liked, valued, and approved of by others in order to develop supportive peer relationships and engage successfully in social relationships. In order to be approvaled by others, the individuals in social situation must meet the need or expectation of the sudience. This paper further suggested that the disorder of social phobia is developed and maintained by a process of comparison between the indivuduals’ belief of how the audience views him or her and the belief of what standards are expected for him or her by the audience. The discrepancy between these two beliefs determines the perceived estimation of negative evaluation from other people and result to social anxiety.