Objective To observe the clinical effect and safety of Heshi Yimu Shenghua Tang in the treatment of missed abortion. Methods Treatment group consisted of 60 patients of missed abortion. Another 30 patients just after medical abortion at the time were selected as the control group. Control group was given 25 mg of mifepristone in both morning and evening for 3 days

150 mg in total. On the third day morning

patients in control group came to the hospital with an empty stomach

took 0. 6 mg of misoprostol under monitoring of medical staff

and were hospitalized and observed for 6 hours. Treatment group was given Heshi Yimu Shenghua Tang half dose in both morning and eveningfor 5 days. During medication

if active bleeding of patients was beyond the menstrual amount

they had to receive uterine curettage. Abortion conditions and side effects in both groups were observed. Vaginal bleeding time and days for menstruation recovery after treatment in two groups were recorded. Results The total effective rate of abortion was 100% in treatment group and 93. 3% in control group

with no significant difference between two groups（ P > 0. 05）. Vaginal bleeding time in treatment group was much less than that in control group（ P < 0. 01）. There was no significant difference in days for menstruation recovery between the two groups（ P > 0. 05）. Patients in both groups felt weak in different degrees during medication. Three patients in control group got nausea. Conclusion Heshi Yimu Shenghua Tang shows definite therapeutic effect on missed abortion. It could decrease vaginal bleeding time obviously with no significant side effect.