Time-travel TV series is a new type between science fiction TV series and myth TV series (Li, 2012). In these years, more and more university students are addicted to it (Sun, 2011). To understand the reasons why time-travel TV series is so popular in those young groups, this paper adopts the structure of close-ended and the Likert-Scale five-point measure questionnaire. We choose 400 university students as the respondents, and they all come from the Southwest University. The questionnaires are randomly delivered to students from different majors and grades. The results are as follows: 1) time-travel novel’s prevalence lays the foundation for the time-travel dramas; 2) romantic love and heroism are the second main reasons of its success, followed by eye-pleasing actors in the TV dramas, and Post-modern aesthetic idea; 3) compared with historical TV drama, time-travel TV series is much more popular, and there are even 24.4% respondents learning history from time-travel TV series; 4) 57% students think time-travel TV dramas have some scientific basis, and some of them (104 students) still believe that those stories can be happen in real life.