This research aims to investigate the role of blockchain technology in making the supply chain more transparent and increasing customer trust. The present research is of an applied type and is conducted in a descriptive-analytical and survey-type manner. The data collection method is through a structured questionnaire based on a 5-point Likert scale. The statistical population of this research includes supply chain and information technology managers and experts in companies that have implemented blockchain technology in their processes. The sample size is about 100 to 150 people and the data has been collected and analyzed quantitatively. The results of the research show that the use of blockchain technology in the supply chain increases the transparency of the supply and distribution processes of goods, increases customer trust, improves efficiency, reduces costs and ultimately increases customer satisfaction. These findings confirm the research hypotheses in which transparency, customer trust, customer experience and customer satisfaction have been examined as the main variables. The results of this research can be useful for companies and organizations that plan to use blockchain technology in their supply chain.