Due to the fiber loop configuration, BOTDA loop measurement can significantly increase Brillouin signal strength, optimize SNR, improve measurement accuracy, and shorten measurement time. Using fiber optics as a signal transmission and measurement tool, this system will have anti-boiling, anti-explosion performance and with excellent performance in terms of resistance to chemical environments, high voltage, nuclear and other hazardous environments. Real-time fault or fault monitoring system (so that it is visible at the same time as the event occurs in the monitoring systems), widely used in major submarine cable monitoring projects, high voltage cables, overhead lines, oil and gas pipelines , Dams and stairs have been used.