Introduction: Today, Competitive Intelligence and ethics play a valuable role in promoting sustainable Competitive advantage and technology commercialization capabilities of companies. According to the current Competitive environment, companies are looking for a suitable solution for survival and durability. Therefore, the present research was conducted with the aim of analyzing the relationship between Competitive Intelligence Activities and ethics and sustainable Competitive advantage and technology commercialization capabilities. Material and Methods: This research was applied and among descriptive-correlation researches. The statistical population was managers and experts in the fields of research and development, quality, marketing, commerce, sales, production, training, human resources and information technology of 11 large dairy companies in Tehran and Fars provinces. The sample size of the research was 306 people, and they were selected by cluster sampling method. The questionnaire tool was made by the researcher and finally the data were analyzed through SPSS 26 and Smart PLS 3 with structural equation modeling method. Results: The results showed that the proposed model has a good fit for Iran's dairy industry. Competitive Intelligence and ethics Activities have a significant effect on sustainable Competitive advantage and technology commercialization capabilities. Also, technology commercialization capabilities have a significant effect on the sustainable Competitive advantage of companies. Conclusions: Using the current research model in the dairy industry improves sustainable Competitive advantage. Companies can help improve sustainable Competitive advantage by considering Competitive Intelligence and ethics and technology commercialization capabilities.