T-cell large granular lymphocyte leukemia (T-LGL leukemia) is a rare hematologic malignancy, acing for approximately 2-5% of chronic lymphoproliferative disorders in North America and around 6% in Asia. Typically diagnosed around the age of 60, this condition affects both genders with almost equal frequency and is rarely observed in children. The distinguishing feature of T-LGL leukemia is the proliferation of large granular T-cells or NK cells in the blood, often resulting in cytopenias and refractory anemia. It is associated with various autoimmune diseases and other lymphoproliferative malignancies. Patients may experience recurrent fever, infections, and occasionally exhibit B symptoms of lymphoma. Here, we present the case of a 66-year-old female patient who sought medical attention due to frequent bleeding episodes and a high demand for blood transfusions. Traditional Chinese Medicine (TCM) intervention was administered based on the principles of tonifying qi, nourishing blood, and clearing heat from the blood. Subsequently, the patient reported a significant improvement in her quality of life, accompanied by a reduced frequency of blood transfusions. This case highlights the potential benefits of TCM as a complementary approach in managing T-LGL leukemia and improving patient outcomes.