In the present study, 247 university students were randomly assigned to any one of experimental groups in a 2 (Feedback Type: success, failure) × 2 (Value of Task: important, not important) × 2 (Extraversion: introversion, extraversion) between groups designed experiment to test how success and failure feedback affect individual’s core self-evaluations (CSE), and explore whether value of task and extraversion moderates the influence. Results showed that: (1) significant main effects of types of feedback, value of task, extraversion, and interactive effect of the three on the change of CSE were all found significant. (2) Interactive effect of types of feedback and value of task on the change of CSE was found significant. Simple main effect showed that change of CSE in subjects executing important task was higher than those executing non-important task in the condition of failure feedback, but no significance in the condition of success feedback.（3）Interactive effect of types of feedback and extraversion on the change of CSE was found significant. Simple main effect revealed that change of CSE in introvert subjects was higher than extrovert subjects in the condition of failure feedback, but no significance in the condition of success feedback. (4) In the condition of failure feedback, task of value interacted with extraversion to influence the change of CSE, but this interactive effect was not significant in the condition of success feedback.