Objective To study the effect of ureteroscopic holmium laser lithotripsy in the treatment of ureteral calculi and its effect on oxidative stress. Methods Sixty patients with ureteral calculi admitted to our hospital from March 2016 to April 2017 were randomly divided into control group and observation group, with 30 cases in each group. The observation group received ureteroscopic holmium laser lithotripsy and the control group received conventional open surgery. We compared inflammatory factors such as interleukin-10 (IL-10), C-reactive protein (CRP), and white blood cells (WBC) before and after surgery, as well as cortisol (Cor), malondialdehyde (MDA), and superoxide dismutase (SOD) and other levels of oxidative stress indicators, while comparing the two groups of debris. Results The operation time and hospitalization days in the observation group were lower than those in the control group. The stone removal rate was higher than that in the control group (P<0.05). After operation, the IL-10, CRP and WBC in the observation group were higher than those in the control group (P< 0.05). Cor and MDA in the observation group were lower than the control group, and SOD was higher than the control group (P<0.05). Conclusion Ureteroscopic holmium laser lithotripsy is effective in the treatment of ureteral calculi. It can inhibit inflammatory factors, reduce stress response, and promote the recovery of patients' diseases. It is worthy of clinical promotion.