A personal exercise measuring safety system is provided. Aforementioned system is applied in a bicycle and includes an image acquiring or information transmitting device, an exercise measuring device, a personal mobile digital measuring device and a power supply device. The image acquiring or information transmitting device is configured on one portion of the bicycle by a fixator. The personal mobile digital measuring device electrically connected with the image acquiring or information transmitting device by a digital image transmitting device so as to receive an image or information. The personal mobile digital measuring device selectively displays the image or information, or provides an external handheld communication device for receiving and displaying the image or information. The power supply device is configured to provide power to each device.
