Objective To explore the effects of pregnancy induced hypertension(PIH) on mothers and their babies.Mothods 76 cases of PIH were retrospectively reviewed. Results There was significant difference in the ratio of difficultlabor, SGA, the neonatal suffocation,neonatal mortality, matenral complications and the time for resuming blood pressure aftergiving a new birth between severe PIH and moderate and light PIH. Conclusions PIH, especially severe one posts criticalthreats to the safety of the mothers and their babies, therefore, positive prevention measures and treatment should be adopted orterminate the pregnancy at right time.