Summary of case history,　The elderly primipara, after secondary infertility assisted reproduction and 35 weeks of pregnancy, found that the blood sugar was abnormal for more than 2 months, and the conscious uterine contractions were frequent for 3 days. The proposed diagnosis of "threatened preterm labor" was admitted to hospital for treatment. The re examination of color ultrasound showed that there was too much amniotic fluid. Professor Xie was invited for consultation. Appling four diagnoses and participation, the diagnosis of "Ziman, Threatned abortion, Mu yu Tu yong syndrome" was made. After taking 3 doses of Danggui Shaoyao Powder, the amniotic fluid dropped and there was no abdominal pain. The patient was cured and discharged.,TCM diagnosis,　Ziman, Threatned abortion, Mu yu Tu yong syndrome,Western medicine diagnosis,　1.polyhydramnios; 2.threatened preterm labor; 3. diabetes during pregnancy; 4. G1P0 35 week intrauterine pregnancy,Therapeutic methods,　Oral administration of Chinese medicine, dietary guidance,Clinical outcomes,　cured