Purpose: The purpose of this study was to examine the effects of auricular acupressure therapy on back pain and lower abdominal pain in female undergraduate students during menstruation. Methods: The study used a quasi-experimental design. Data was collected from March 15th to June 31st, 2011. The participants were 20 female university students for the experimental group, and 22 female university students for the control group. visual analogue scale (VAS) with the opening records was used to assess back pain and lower abdominal pain. Data was analyzed using the χ²-test, Fisher’s exact test, Mann-Whitney U test, and Wilcoxon signed rank test using the SPSS/WIN 11.0 program. Results: There were statistically significant differences in back pain and lower abdominal pain between the two groups. Auricular acupressure therapy decreased back pain and lower abdominal pain in the experimental group compared to the control group. Conclusion: The study results show that auricular acupressure therapy is effective in improving back pain and lower abdominal pain in female university students during menstruation. Therefore, auricular acupressure therapy can be considered a useful nursing intervention to promote improvements in back pain and lower abdominal pain related to menstruation.