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In order to improve the disposition efficiency of fiber fault, a fiber intelligence monitor system based on GIS and OTDR is designed. The total technology framework and software function structure are introduced. The incident information in OTDR curve is distilled by adopting wavelet analysis technology, and the position of fault point is found out. Then the fiber length data of fault point is transformed into longitude and latitude data, and by combining the fiber topology structure and GIS system, the fault point is duly displayed on the electronic map and an alarm is throw out. Through the system testing, the results demonstrate that the wastage resolving ratio of OTDR is 0.01 dB, the dynamic scope is 34~45 dB, the measure response time is 5 ms, the orientation error of fault is less than 10 meter, and the alarm time is 2 ms, which fully meets the demand of fiber emergency treatment.