Pre-eclampsia, a condition unique to human pregnancy, is a significant cause of maternal and fetal Morbidity and mortality.The objective of this study is to compare between the different methods used for the prediction of the fetal outcome in pre-eclampsia ( the biophysical profile, the modified biophysical profile, the Doppler study of uterine, umbilical, middle cerebral, renal arteries Doppler. The Amniotic fluid index, a special attention to fetal response and habituation to vibro-acorustic stimulation) and to correlate the results to the fetal outcome. The best available test for prediction of fetal outcome in pre-eclampsia is the biophysical profile, followed by umbilical artery Doppler followed by fetal response to vibro-acoustic stimulation.All cases that were found to have abnormal biophysical profile, modified biophysical profile and negative fetal habituation to vibro-acorustic stimulation were having either concomitant or preceding abnormal maternal and or fetal vascular Doppler.Uterine artery resistance changes precedes the occurance of the umbilical artery changes in patients with pre-eclampsia.Fetal habituation to vibro-acorustic stimulation requires the integrative functions of the higher CNS centers.Fetal uses from normal pregnancies habituate more than pre-eclampsia.Fetuses who habituate to vibro-acorustic stimulation had less complications in labour or the nursery compared with those without habituation.Sound stimulation reduce the false positive rate of the non stress test (NST).The optimal method for fetal surveillance remains unresolved.