Purpose: This study estimated HRV and CBC of Qi deficiency-risky group and non-risky group at the seventh day after parturition, and found out their correlation with autonomic nervous system and immunity for the purpose of expressing diagnosis of Oriental Medicine objectively. Methods: The subjects of this study were 33 postpartum women who admitted for postpartum care in Oriental Hospital of Woosuk University from 17th July 2007 to 15th August 2007. We made inquiries based on Qi-Hyul-Su chart of Terasawa Katsutoshi and tested their HRV and CBC. Results: 1. The average age of Qi deficiency-risky group was higher than non-risky group and showed statistical nonsignificances. 2. Normalized LF was higher in Qi deficiency-risky group than non-risky group and Normalized HF was higher in Qi deficiency-non-risky group than risky group, both showed statistical significances. 3. WBC is higher in Qi deficiency-risky group than non-risky group showed statistical significances. WBC and Qi deficiency score had positive correlation. 4. LYM was higher in Qi deficiency-non-risky group than risky group and Grn was higher in Qi deficiency-risky group than non-risky group, both showed statistical significances. Conclusion: We found out that in Qi deficiency-risky group of postpartum women, immunity is lower than in non-risky group.