Objective To explore the willingness of elderly patients to use mobile medical services and its influencing factors. Methods A total of 193 elderly patients were investigated by using a self-designed questionnaire regarding their willingness to use mobile medical services and the influencing factors. Results The score of elderly patients′ willingness to use mobile medical services was 32.35±13.75, and the factors influencing the willingness in descending order were innovation and convenience,personal aspect and distribution channels.There were significant differences in the willingness of elderly patients of different ages and education levels to use mobile medical services （P＜0.05 for both）.The main factors influencing the willingness to use "Tianxia Doctor" App in the hospital included difficulty to change the traditional health-care seeking patterns （36.54%） and being unheard of it （27.88%）. Conclusion Elderly patients are reluctant to use mobile medical services. To improve their willingness to use mobile medical services, we should provide them with enriched hand-on experience, enhance their knowledge of the advantages of the new medical model, make more improvements in distribution channels, make the process more simplified and easier for elderly users, and provide policy guarantee,etc.