The global pet market continues to grow, with a projected compound annual growth rate of 6.1% from 2022 to 2027. According to the Council of Agriculture, Executive Yuan, the value of Taiwan's pet industry has reached 60 billion NTD in 2023. To explore how Taiwan's pet food industry adapts to the emergence of the new retail era and establishes online business models, this study focuses on two major players: "Vital Snacks," a traditional pet food manufacturer developing e-commerce, and "Pet Planet," an emerging pet e-commerce platform actively engaging in vertical integration. The study compares the competitive advantages, business strategies, and challenges faced by these two different companies. The findings of this research will help pet food businesses understand how to enhance brand competitiveness and drive digital transformation in the new retail era to expand their market influence.