A physiological status monitoring system includes a clothing and a mobile device. The clothing has a display unit connected to the outside thereof, and a sensor is located in the clothing. The sensor includes a control unit, an emitting unit and a power supply unit received therein. The control unit has a flashing program, a warning program, a safety program and a racing program written therein. The wearer holds the mobile device which is connected to the sensor wirelessly and has a receiving unit. The sensor detects physiological data of the wearer, and the physiological data of the wearer is displayed on the display unit. The physiological data of the wearer is also sent to the mobile device. The wearer can be acknowledged his/her physiological status.
