Disclosed is a system and method for detecting a leak and estimating a location of a plant facility by applying a leak prediction algorithm. The system for detecting and estimating a leak of a plant facility according to the present invention includes: a plurality of sound cameras for converting a distribution of sound in an ultrasonic region into an image by detecting sound generated when a leak or leak of a plant facility is leaked; A data collection unit collecting data from the plurality of sound cameras; A data analysis unit that analyzes the collected data to detect leakage and estimate a location; And an information providing unit providing information according to a result of the leakage detection and location estimation to a user.
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