Many women with ovarian cancer may experience adverse effects from adjuvant chemotherapy after surgery. Non-pharmacological interventions can be used to reduce these side effects. We tested auricular acupressure to reduce treatment side effects in this population.A prospective, quasi-randomized controlled trial was carried out at a publicly-funded hospital in southern Taiwan. Thirty-four women in the intervention group received auricular acupressure at four points (Shenmen, subcortex, endocrine, and heart), three times per day for 3 min per time, for 6 weeks. Thirty-one women in the control group received routine nursing care alone. The M. D. Anderson Symptom Inventory (MDASI) was completed at four time points.After receiving the third cycle of chemotherapy, side effect severity was elevated among both groups. Auricular acupressure reduced side effects such as disturbed sleep (t = - 11.99; p < .001, eta squared = 0.69), fatigue (t = - 2.57; p < .01, eta squared = 0.10), and lack of appetite (t = - 2.37; p = .024, eta squared = 0.08).Auricular acupressure can reduce adverse side effects of chemotherapy in women with ovarian cancer. Future studies with a larger sample and using some laboratory-based tests (such as C-reactive protein, interleukin-6) are warranted to confirm the results.