A nursing call system includes an emergency call device, a display screen and an extension accessory. The extension accessory includes a connecting wire, a connecting end and a holding device. The connecting end is connected to one end of the connecting wire and is used to connect a connection member of the emergency call device. The holding device is connected to the other end of the connecting wire and includes a first physiological sensor and a second physiological sensor. The first physiological sensor includes a sensing component and is disposed to measure a first physiological information. The second physiological sensor is disposed to measure a second physiological information and includes a first sensing component and a second sensing component. The second sensing component and both of the first sensing component and the sensing component are respectively disposed at two different regions of the holding device.
