The invention discloses a method for advanced geophysical prospecting of a concealed fault in tunnel boring processes. Based on a micro-seismic monitoring system, a micro-seismic event caused by fault activation can be determined via analysis of a relation between spatial distribution of the micro-seismic events and a working face for tunnel boring; the micro-seismic event caused by the fault activation is chosen and analyzed, an energy density cloud picture for the micro-seismic event caused by the fault activation is drawn, and an inclination angle and a trend of the concealed fault can be determined. The method is simple in implementation, high in accuracy, long in forecast distance and great in economic value and social significance.