【Abstract】 Objective To investigation the intake calcium, iron, zinc and copper of pregnant women and discuss its impact on the quality of neonatal development. Methods 160 late pregnancy women with breastfeeding as investigation object were selected in hospital from January 2016 to July 2016. The diet for the pregnant woman was investigated. The serum calcium, iron, zinc and copper of the pregnant women and infants were measured. The relationship of serum calcium, iron, zinc and copper of the pregnant women, those of infants and neonatal birth weight were analyzed. Results The intake of key nutrients and energy of the pregnancy women could achieve Chinese nutrition society of the recommended dietary intake of vitamin E, protein, energy, calcium, iron, zinc and copper. Compared with those of the pregnant women, the serum calcium, iron and zinc of the infants significantly increased and the serum of copper of the infants decreased (P＜005). There was positive relationship between serum calcium, iron and zinc of the pregnant women and infants. There was no relationship between serum copper of the pregnant women and infants. The serum calcium of neonatal birth weight more than 40 kg was higher than that of neonatal birth weight between 25 and 40 kg (P＜005). The serum copper of neonatal birth weight more than 40 kg was lower than that of neonatal birth weight between 25 and 40 kg (P＜005).Conclusion The serum calcium, iron, zinc, copper of pregnant women can impact the growth of the infant. In order to promote women's own health and the growth of the fetus, pregnant women during pregnancy should strengthen the intake of nutrients and energy security.