This study examines the implementation of Islamic business ethics at Warung Bakmi Sleman Pak Hardi, a small business located in Sleman Regency, Special Region of Yogyakarta, which has been operating since 2000. The background of this study lies in the importance of applying Islamic ethical values in business to create practices that are not only profitable but also just and blessed. This research aims to identify and analyze the application of Islamic business ethics principles such as honesty, justice, responsibility, trustworthiness (Amanah), and excellence (ihsan) in the daily operations of the establishment. These activities include interactions with customers, employee management, and the selection of raw materials that meet halal and thayyib standars. The research method mployed is a descriptive qualitative approach with a case study design. Data were collected through direct observation, in-depth interviews with the owner and employees, and surveys with customers. The findings indicate that the principle of honesty is applied in providing product information and conducting transactions with customers. The principle of justice is reflected in the fair distribution of tasks and treatment of employees. The principle of responsibility is evident in maintaining the quality of raw materials, service consistency, and adherence to halal standards. The principle of trustworthiness (amanah) is seen in the transparent management of the business, both in financial aspects and in the trust given by customers and employees. Meanwhile, the principle of excellence (ihsan) is implemented through efforts to provide the best service to customers with a friendly attitude. The findings of this study are expected to serve as a reference for other small businesses in implementing Islamic business ethics. Thus, this research supports the development of sustainable, ethical, and blessed business practices for all parties involved.