【Abstract】 Objective To investigate the clinical efficacy of a Jianpi Bufei Huatan formula combined with auricular acupuncture in patients with acute exacerbation of Chronic Obstructive Pulmonary Disease (COPD) with phlegm turbidity obstruoting the lungs. Methods This study included 98 patients with COPD in the acute exacerbation phase, who were hospitalized at Taicang Hospital of Traditional Chinese Medicine between January 2023 and May 2024. The patients were randomly assigned to either the observation group or the control group, with 49 patients in each group. The control group received conventional western medicine treatment, while the observation group was treated with Jianpi Bufei Huatan formula combined with auricular acupuncture in addition to conventional therapy. The TCM syndrome scores, pulmonary function, and clinical efficacy were compared between the two groups. Results After treatment, the observation group showed significant improvements in TCM syndrome scores, pulmonary function, and clinical efficacy compared to the control group (P ＜ 0.05). Conclusion The combination of the Jianpi Bufei Huatan formula with auricular acupuncture significantly improves the syndrome scores, pulmonary function, and clinical outcomes in patients with acute exacerbation of COPD with phlegm turbidity obstructing the lungs, demonstrating favorable therapeutic effects.