Abstract: A portable radio device, an emergency notification apparatus, and an emergency notification system are provided. The portable radio device 10 has an emergency button that can be operated by the user of the device 10. When the button is operated, an identification data is added to the date and time data, position data, and image data obtained at that time, thereby generating emergency notification data. Then, the emergency notification data is transmitted by radio to the emergency notification apparatus 70 along with an emergency notification signal. When receiving the emergency notification signal, the apparatus 70 stores these data in a database 107 and performs a notification that the user is in a state of emergency to predetermined contact addresses 1 to n.