As China comes into an aging society, the demand for adequate elderly health services continues to grow while the public medical resources are limited. The oldest old are more vulnerable to chronic disease compared with the elderly due to their weaker physiological functions and disease resistance. What is worse, because of the infirmity, limited mobility, poor communication skills, partial or complete loss of life and social skills, most of the oldest old have to stay at home and it is difficult for them to go out for medical treatment. Home-based medical observation and health care have gradually become the rigid demands of the oldest old who are trapped at home. Thus, increasing the delivery efficiency of healthcare services for the oldest old via the exploitation of Internet technology is a pressing issue. In this paper, we propose an Internet-based chronic disease health management information platform focusing on the oldest old. The proposed platform can not only provide online home-based observation according to the patient's individualized management scheme but also offline door-to-door diagnosis and treatment services and continuous management functions when necessary, which is of great significance and can be particularly significant during the period of prevention and control of COVID-19 epidemic.