The fever epidemic detection system comprises a detection module, a control module and a communication module. The detection module measures and obtains a body-temperature measured value. The control module comprises a first operation unit, a determination unit and an alert unit. The first operation unit receives and calibrates the body-temperature measured value with a calibration factor, and generates a body-temperature calibrated value. The determination unit receives and determines whether the body-temperature calibrated value is within a preset normal body-temperature range and generates a determination result. The alert unit receives the determination result. The communication module transmits data to an external device. The alert unit generates a first alerting message, if the determination result shows that the body-temperature calibrated value is not within a preset normal body-temperature range. The control module transmits the first alerting message and the corresponding body-temperature to the external device via the communication module.
