Abstract: Abstract Objective To study the relation of the level of the D-dimer and ginkgo leaf injection in patients of SLE. Methods The level of the D-dimer were tested by immunoenhancement before and after the treatment with ginkgo leaf injection, meanwhile the control groups were established.. Results Before the treatment, the D-dimer level of patients in both SLE groups were much higher than that of patients in health controls（t‘=7.342 , P<0.001；t’= 7.033 , P< 0.001）； The D-dimer level after the treatment had significant decrease in both SLE groups（t=2.411，0.02

Key words: SLE , D-dimer