Purpose: The purpose of this study is to identify the effectiveness of Qi exercise on the physical discomfort and depress of maternity. Method: A one group pretest-posttest design was used. Data were collected from July, 1, 2005 to September, 30, 2005. A total of 33 mothers participated in 12 weeks of Qi exercise program. In order to evaluate the effects of the Qi exercise program, physical discomfort and depression were measured before and 12 weeks after. The experimental tools for the study were Maternity Physical discomfort Scale and Self-rating Depression Scale(SDS). Data were analysed using t-test, paired t-test, and repeated measured ANOVA on the SPSS program. Result: After 12-week Qi exercise program, there were significant differences in physical discomfort (t=3.268, p= .003) and depression(t=4.106, p= .000). Conclusion: It was verified that the Qi exercise program was effect on relieving physical discomfort and depression scare. And it was effective in alleviation delivery experience score. So more in-depth research is needed later on.