This study examines the antecedents and consequence of the third-person effect of election poll reports. A causal model proposes that higher educational level , greater perceived self-expertise on campaign issues, greater involvement with an election, and greater perceived undesirability of election poll reports will have positive direct effects on the third-person effect of the poll reports. And a stronger perception of the third-person effect of election poll reports will induce an endorsement of prohibiting the reports during election campaigns. Overall, the causal model is supported by the data of this study. Most of the hypotheses are supported with the exception that perceived undesirability of poll reports does not have a significant effect on the third-person effect fo the reports.