With the Lesbian, Gay, Bisexual, and Transgender (LGBT) community appearing in public pervasively, people's perspectives on this minority group are polarized. Even though some people have gradually established the perspective of tolerance and protection of LGBT people, discrimination against them still exists. In this paper, we aim to find the causes of Heterosexual people's changing attitudes toward LGBT groups. We present the hypothesis that the factors of changing ideas of heterosexual people toward LGBT people vary a lot, including films, TV series, news, real ambient examples, and social media. To test this hypothesis, fetch information from literature reviews, mostly online resources, and distribute an online survey through WeChat, a Chinese social media software, to people who belong to the Heterosexual group. Respondents were asked to answer ten multiple-choice questions related to their understandings and conversion of their attitudes. The results showed that external factors caused Heterosexual people to alter their attitudes in a wide variety, verifying our hypothesis. We hope that by studying the factors that influence the change of Heterosexual groups' attitudes towards LGBT. We can extract methods and measures tailored to local conditions to promote society to treat this minority group more equally. We also hope to study the acceptance of different modes of communication by different people, and then have a clearer understanding and comprehension of entertainment and media in cultural communication.