【Objective】 Through the forward-looking longitudinal monitoring anemia pregnant women and neonatal, infant's Hb, sTfR, to analysis the influence of iron metabolism of 6 months infant when pregnant women suffering from anemia. 【Methods】 Randomly selected 56 cases parturient women which Hb <100 g/L as study group, another 56 cases parturient women with gestational age at birth which Hb >110 g/L as control group. Their neonates were divided into two groups: progeny study group and progeny control group. Babies were regular check-up at birth, 42^nd day, 4^th month, 6^th month. All of them were extracted blood testing Hb, sTfR. 【Results】 Compared with controls, the pregnant women and 6 months old babies' Hb and sTfR value had very significant differences(P<0.01); Neonatal Hb and sTfR value had no significant differences(P>0.05). Anemia pregnant women's babies of 6 months old, 60.8% suffered from IDA. The normal pregnant women's babies, only 21.6% suffered from IDA. Difference was very significant(P<0.01). 【Conclusion】 Pregnant women anemia is one of risk factors to cause 6^th month infant subclinical iron deficiency and IDA.