The invention relates to a method for predicting the volume of a carbonate rock fractured cave type reservoir. The method comprises the following steps of: acquiring the seismic attribute volume of a tested fractured cave through seismic wave; and predicting the volume of the tested fractured cave according to the product of the seismic attribute volume and a correction coefficient. When the volume predicting method is put into industrial application, the recovery rate of the carbonate rock reservoir is improved, and the yield is quickly increased.