Integrating immunotherapy with Halal compliance is essential to provide medical treatments that align with Islamic principles, thereby enhancing acceptance among Muslim patients. This chapter explores the intersection of advanced immunotherapeutic approaches and Halal guidelines, aiming to harmonize cutting-edge medical treatments with religious observance. I begin by defining immunotherapy and its significance in modern medicine, detailing various types such as monoclonal antibodies, cancer vaccines, checkpoint inhibitors, and CAR T-cell therapy. Subsequently, I delve into the concept of Halal, its importance in Islamic practice, and its application across food, medicine, and consumer products. The core objective is to address the need for Halal-compliant medical treatments, focusing on how immunotherapeutic agents can be developed and administered in accordance with Halal standards. This includes examining the sourcing of biological materials, manufacturing processes, and the use of excipients to ensure they meet Halal requirements. By integrating immunotherapy with Halal compliance, healthcare providers can enhance patient trust and adherence to treatment plans, leading to improved health outcomes within Muslim communities. This approach not only respects religious beliefs but also promotes inclusivity and cultural sensitivity in medical practice. In conclusion, the chapter underscores the importance of aligning medical innovations with religious principles, advocating for collaborative efforts among healthcare professionals, religious scholars, and regulatory bodies to develop Halal-compliant immunotherapeutic options.