This research proposal investigates the impact of digital marketing on the growth of Sainsbury's, a major UK supermarket chain. The study begins by establishing the background of digital marketing, highlighting its evolution and importance in modern business operations. It then provides an overview of Sainsbury's, detailing its history, market position, and product offerings. The research aims to explore the relationship between digital marketing strategies and Sainsbury's growth, identifying various digital marketing techniques such as SEO, SMM, and content marketing. The methodology section outlines the deductive approach, survey strategy, and qualitative methodology to gather and analyze data. Data will be collected through questionnaires from 30 Sainsbury's employees. The proposal includes a timeline for the research, detailing the activities and their completion schedule. The research seeks to answer key questions on digital marketing's impact, techniques, and application, ultimately recommending strategies for Sainsbury's to leverage digital marketing for further expansion and enhanced business performance. The research will use secondary data from journals and e-books.