The adoption of digital technology in modern commerce has driven growth in total online sales and stimulated the development of new business models that combine online and offline sales activities. However, this change has created unique challenges in the food supply chain, requiring businesses to adapt to changing customer preferences and demands. In response to these changes, many businesses have begun leveraging blockchain technology to enhance supply chain efficiency, ensure food safety, and build consumer trust. This paper explores the specific challenges food businesses face operating in an integrated online and offline model. It analyzes how blockchain technology can address these challenges at different nodes within the supply chain. Focusing primarily on upstream sourcing, inventory management, and information transparency, specific strategies for blockchain adoption are provided. By examining the motivations and difficulties for food companies to invest in blockchain technology, the paper provides practical recommendations to improve the performance and efficiency of digital transformation in the food industry.