This study with quasi – experimental design, will be conducted to assess the effect of continuity of midwifery care, in childbirth course, on mother and child health, in non- complicated (medical and obstetrical complications in pregnancy) parturient, which referring to study center for normal vaginal delivery. Parturient in two groups, will receive different kind of midwifery care. In conventional care group: the clients will be cared (from admission time in delivery part till one hour after delivery) by a group of duty midwives, and visit regularly at 1:30–2 hour intervals, in admission and labor and delivery sections. But in continuity of care group, one midwife will care, from admission time in delivery part till one hour after delivery; she lefts clients bedside only for several minutes. Then consequences of each kind of care, as childbirth outcome, will be recorded in self administer check list and analyzed.