Brain Natriuretic peptide (BNP) is a peptide hormone secreted by the heart that promotes sodium excretion and diuresis, lowers blood pressure, and also dilates blood vessels and reduces heart load. The level of BNP is closely related to the load and function of the heart and can therefore be used to assess the severity and prognosis of cardiovascular disease. Anti-BNP antibody is an antibody used to detect BNP, with high sensitivity and specificity, which can be used to quickly and accurately diagnose cardiovascular diseases such as heart failure and cardiomyopathy. The advantage of anti-BNP antibodies is that they can provide rapid and accurate diagnostic results, help doctors take timely treatment measures, and improve the survival rate and quality of life of patients.