The influence of strategic voting has become overwhelmingly in recent Taiwan elections. According to Duverger's Law and M+l rule proposed by Gary Cox, this paper focusing on 2001 legislative election, explores this particular electoral phenomenon. More importantly, comparing to previous literature, this empirical study tries to combine and compare the information received from the individual survey data and aggregate district data. The results from both data show the votes did not cluster to the top two candidates in the legislative election. That is, the evidence of strategic voting is not sufficient enough in multimember districts. However, as for the impacts of strategic voting, no consensus between both data is found.