Total quality management (TQM) is a method of managing a bank. TQM, which is considered as a critical instrument, directs the strategy of developing work and increasing performance in order to generate profits through quality services and products. Therefore, this study aimed to examine the function of TQM in improving customer relations in Jordanian Islamic banks. Primary data was gathered by surveying 163 workers of Jordanian Islamic banks. A questionnaire was employed as the data-gathering technique. To do the descriptive statistical analysis, SPSS version 25 was employed. The findings show that there is a statistical association between Jordanian Islamic banks' TQM, which includes customer satisfaction, strategic planning, continuous improvement, and relationships with customers.