This research uses the GARCH-M model to explore the impact of the New York Dow Jones Industrial Average and New York Standard & Poor's 500 stock index returns on Taiwan-listed printing companies (3284 Top High Image Co., Ltd.), (8401 Bai Sha Technology Co., Ltd.), (8481 Transart Graphics Co., Ltd.), and (8906 Forward Graphic Enterprise Co., Ltd.), (8921 Shen's Art Printing Co., Ltd.), (9929 Choice Lithographics) and other listed printing companies' risk premium analysis of stock price returns during the period of COVID-19. The research period was from January 1, 2019 to March 14, 2022, with a total of 749 daily data. Empirical evidence points out that Taiwan-listed printing companies are affected by the Dow Jones Industrial Average and New York Standard & Poor's 500 stock index, the previous day's returns all showed the risk premium as a significant effect, which is consistent with the research hypothesis of this paper.