Elderly patients with comorbid diabetes mellitus and hypertension have a high incidence of sleep disturbances. The occurrence of sleep disturbances often leads to poorer control of blood glucose and blood pressure, and the mutual influence between these conditions creates a vicious cycle. A total of 320 patients aged ≥65 years with comorbid diabetes mellitus and hypertension and a Pittsburgh Sleep Quality Index (PSQI) total score ≥8 will be enrolled from 20 village clinics in Taizhou City, Jiangsu Province. Villages will be randomly assigned in a 1:1 ratio to the real auricular acupuncture group or the sham auricular acupuncture group. The real auricular press-needle acupuncture group will receive treatment using disposable intradermal needles (0.22 × 1.5 mm) at five core auricular points: Heart, Liver, Kidney, Shenmen, and Frontal region. Needles will be retained for two days, alternating between ears, with daily pressing four times per day. The sham auricular press-needle acupuncture group will receive adhesive patches identical in appearance but without needles applied to the same points, without inducing deqi sensation. Village doctors will be trained by specialists from higher-level hospitals and will receive quality control support via a telemedicine platform. The intervention will last 6 weeks, with follow-up at 12 weeks. The findings will provide high-quality evidence-based support for the management of sleep disturbances in elderly rural patients with comorbid diabetes mellitus and hypertension and promote the standardized application of auricular press-needle acupuncture in primary care.