Objective To strengthen the high-risk pregnacy management and to make mother and infant safe.Methods We registrated all the pregnant women at their first antenatal examinations,screened high-risk factors,and set up charts to trace and manage the high-risk population.We collected the datas of their general information,high-risk factors,delivery methods,postpartum hemorrhage and infant status to do the statistic analysis.Results We had registrated 4141 pregnacies from Jan 1st,2000 to Dec 31st,2003.983 high-ri...