Background: With the gradual aging of China’s population, the provision of health services for elderly patients is facing severe challenges. Among them, health promotion services for the elderly patients with chronic diseases are particularly important. As a new service mode, a pilot “Internet + nursing” service has been launched. In this study, the “Internet + nursing” service needs of elderly patients with chronic diseases in northeast China are discussed through qualitative interviews and quantitative research, and corresponding implementable policies are put forward according to the advanced experience of other countries and domestic pilot results.Methods: Semi-structured interviews were conducted with 17 elderly patients with chronic diseases in northeast China, by focusing on their demand for an “Internet + nursing” service. The interview content was analyzed, and the themes were refined. Then, according to the themes, a questionnaire was constructed about the demand for “Internet + nursing” services by elderly patients with chronic diseases in northeast China, and 348 elderly patients with chronic diseases in northeast China were quantitatively studied.Results: The demand for “Internet + nursing” service by elderly patients with chronic diseases in northeast China fell under three major themes: ① the demand for health services; ② the demand for mental health support, and ③ the demand for improving health literacy. The top three specific demands were traditional Chinese Medicine (TCM) nursing (scraping therapy, cupping therapy, moxibustion therapy, etc.), medication guidance, and disease knowledge guidance. The bottom three were ventilator-assisted ventilation, pressure sore care, and hospice nursing.Conclusions: The demand for “Internet + nursing” service by elderly patients with chronic diseases in northeast China is diverse. In the future, “Internet + nursing” services led by regional medical centers can be considered to further improve the availability and acceptability of services and ultimately promote the development of national health services.