The present application relates to a chimeric antigen receptor (CAR) that can specifically bind to a BCMA protein, comprising a BCMA binding domain, a transmembrane domain, a costimulatory domain, and an intracellular signaling domain. The application also provides a use of the CAR in the treatment of a disease or condition associated to the expression of BCMA.本申請涉及一種可以特異性結合BCMA蛋白的嵌合抗原受體(CAR),其包含BCMA結合結構域、跨膜結構域、共刺激結構域和胞內信號傳導結構域。本申請還提供了該CAR在用於治療與BCMA的表達相關的疾病或病症中的應用。