The invention provides an elderly intelligent monitoring system. The system is used for monitoring the physical condition of elderly and alarming and transmitting monitoring information and alarm information to a mobile terminal when the elderly falls, the system is characterized by including a heart rate detecting circuit, a three axes acceleration sensor, a GPS positioning unit, a communicationunit, an alarm unit, a display circuit, a power supply unit and a controller connected to each of the above components, the heart rate detecting circuit is used for detecting the heart rate of the elderly, the three axes acceleration sensor is used for detecting whether the elderly falls, the GPS positioning unit is used for determining the location information of the elderly, the communication unit includes an antenna and a SIM card slot, and is communicably connected to a mobile terminal through the SIM card slot and the antenna, the alarm unit is used for issuing an alarm when the elderly falls, the display circuit is used for displaying monitoring information, a display is arranged, and the power supply unit includes a first power source, a second power source and a third power source.