In recent years, various studies of data news are in full swing. As a more direct and intuitive representation of data news : data visualization is also gaining in popularity. The researches of data visualization mainly focus on the types of presentations, visualization tools, existing problems and ways to improve them. The research methods are also mainly based on literature research and case studies. However, research on the propagation effect of data visualization is rare. The essay uses eye tracker combined with the questionnaire statistical analysis to test the propagation effects of data visualization. The rigorous and empirical research methods in the essay not only are of high practical significance, but also help to improve the data theoretical. research framework