The invention discloses a method and a device for realizing optimization of fracturing fracture parameters. The method includes: acquiring maximum capacity of a gravel packing area according to pressure drop of the gravel packing area; calculating optimal fracturing fracture parameters according to the acquired maximum capacity of the gravel packing area. According to the scheme, the fracturing fracture parameters are optimized according to the maximum capacity of the gravel packing area to enable capacity of fracturing fractures to be matched with seepage capacity of the gravel packing area, so that capacity improving effect of the fracturing fractures is brought into full play.