Objective To explore the clinical value of using heparin in DIC caused by Tsutsugamushi.Methods 27 cases of Tsutsugamushi with DIC were divided into two groups. The heparin treatment group(n = 15) and non-heparin treatment group(n = 12). The two groups were compared and analyzed. All the cases were diagnosed definitely depended on the "Tsutsugamushi-Disease-Diagnosis Standard".Results The group which use heparin improved in rectifying shock,terminating heorrhage,restoring the time of lab index of DIC,rating of MOF and death. Compared with the control group, the difference had statistical significance(P