Studies indicate that the images of scientists portrayed on TV screens would significantly influence the public understanding of scientists and science. As one type of TV programs, TV commercials have certain particularities in shaping the images of scientists due to its commercial purposes. Advertisers would fully take into account the target audiences' psychological expectations. They would take advantage of the target audiences' trust and worship towards scientists and science to achieve persuasive communication. The images of scientists shaped in this way follow certain paradigms, and possess some common features. This article, from the perspective of science communication, analyzes the features of the scientists' images portrayed in TV commercials and further explores the reasons for these features. The possible influence of the scientists' images shaped in TV commercials upon science communication is also discussed thoroughly in this paper.