Abstract: An exercise management device using a hula hoop having a device for measuring spinning direction and exercise amount includes: an annular body part; a sensor unit including a gyro sensor, an acceleration sensor, and a gravity sensor; a hula hoop including a control unit including a MICOM for receiving and analyzing a data value detected by the sensor unit to calculate and obtain exercise information, a communication unit having a Bluetooth chip for transmitting the exercise information or the data value, and a power unit for switching on/off the control unit; and a wireless communication device having a dedicated program for receiving the exercise information or the data value transmitted from the communication unit and displaying the exercise information.