The physiological background of the human fibrinolytic system is briefly introduced,and,on the basis of that,assay methods for the thrombolysis activity of nattokinase are set up.

• 简介人体纤维蛋白溶解系统的生理学背景,对以此为依据建立的纳豆激酶溶栓活性测定方法进行了概括总结。