When to terminate a pregnancy with chronic hypertension in pregnancy is related to the presence or absence of preeclampsia and eclampsia during pregnancy, not later than 38 weeks of pregnancy, and termination is possible at any time when the condition is unstable. When chronic hypertension is not accompanied by preeclampsia, treatment can be expected to terminate the pregnancy at 38 weeks. When chronic hypertension is complicated by severe preeclampsia, terminate the pregnancy at ≥34 weeks. When chronic hypertension is complicated by mild preeclampsia, terminate the pregnancy up to 37 weeks. If eclampsia occurs, terminate the pregnancy after control of convulsions. The aim of treatment of pregnancy complicated by chronic hypertension is to control the disease, prolong the gestational week, and ensure the safety of the mother and child as much as possible. If chronic hypertension is found to be combined with pregnancy, you should be more vigilant and go to the hospital for treatment under doctor’s supervision if necessary.