Objective To observe the clinical effect of Jianpilishifang combined with magnesium sulfate and calcium antagonists in the treatment of gestational hypertension.Methods 81 cases from January 2014 to June 2015 in gynaecology and obstetrics department of Shengzhou City People’s Hospital were selected and divided into 41 patients in observation group and 40 patients in control group according to a randomized and double-blind method.The control group were treated with magnesium sulfate and calcium antagonist treatment and observation group were treated with Jianpilishifang treatment on the basis of control group.The systolic blood pressure, diastolic blood pressure, 24 h urinary protein (24 hUTP), urinary transferrin ( TRF) , blood viscosity, erythrocyte aggregation index and comparative treatment efficacy were compared pre-and post-treatment.Results The systolic blood pressure and diastolic blood pressure in observation group post-treatment were (125.73 ±5.48, 80.06 ±3.34)mmHg, which were lower than (140.16 ±7.02, 86.79 ±5.21)mmHg in control group (P<0.05).The levels of 24 hUTP and TRF in observation group post-treatment were (1.75 ± 0.14)g/24 h, (1.41 ±0.28)mg/L, which were lower than (2.55 ±0.18)g/24 h, (2.23 ±0.37)mg/L in control group (P<0.05).The blood viscosity, erythrocyte aggregation index in observation group post-treatment were (2.00 ±0.23)mPa? s, (3.11 ±0.20), which were lower than (2.56 ± 0.47)mPa? s, (3.69 ±0.41)in control group (P<0.05).The total effective rate was 95.12% in observation group, which was significantly higher than 80.00% in control group ( P<0.05 ) .Conclusion Jianpilishifang combined with magnesium sulfate and calcium antagonists could effectively reduce blood pressure and improve blood viscosity in the treatment of gestational hypertension.The therapeutic effect of combination therapy is superior to monotherapy.