In the care of the elderly, patients with chronic diseases, Alzheimer’s disease, Parkinson’s disease, and mobility problems are often encountered, and medical staff will spend more time attending to specific conditions than in the normal case. In this paper, we mainly propose a Healthcare Internet of Things, which is an intelligent monitoring system to assist medical staff in caring for the elderly. We adopt cost-effective sensors for various applications that include the acquisition of location information, the detection of infusion and urine bag weights, and the detection of heartbeat; all patient information can also be transmitted to a cloud server via a wireless network. Thus, medical staff can examine the real-time condition of a patient through an application via a mobile device, and it is more flexible and efficient for medical treatment.