The cable is connected with perforating gun and bridge plug that are pumped into the predetermined well depth. Ignite and set the bridge plug, and lift it up to the predetermined position for perforation. Pull out the perforating gun and bridge setting tool. Drop the ball to the bridge plug, block pressed layer, and perform fracturing operations on the layer. In the same way, according to the requirements of the running stages, the bridge plug, perforation, drop ball, and fracturing are run successively, and repeat process. After completing fracturing, the flowback test is performed, and the bridge plug is drilled out or the bridge plug is fully dissolved in the flowback fluid.