Objective: To evaluate the treatment function of ligustrazine in hypertensive disorder complicating pregnancy FGR. Method: 60 pregnant women were randomly selected. The preeclampsia control group(30 patients with preeclampsia), The preeclampsia observe group(30 patients with preeclampsia). The preeclampsia control group: To supply routine method useing MgSO4. The preeclampsia observe group: to supply MgSO4and ligustrazine. And simultaneous determined the levels of BPD,AC,FL,FW and after using drugs in the preeclampsia control group and the preeclampsia observe group. Result: All the values in the preeclampsia observe group before and after therapy: It was found that the expression levels of BPD,AC,FL,FW were significantly difference in all these values after therapy. Conclusion: Ligustrazine could treat FGR of Hypertensive disorder complicating pregnancy.