The invention discloses a method for multi-section blocking of overburden failure section and synchronous leakage measuring. The operation step includes boring upcoming holes with 30-50m depth in top-board rock stratum in a coal rock lane, installing a detection system and sending the detection system to the initial position of the bored holes, enclosing the bored holes with a plugging system, sending a water source with specific pressure to a water inlet pipe through a water flooding operating bench, controlling the gas pressure in a plugging capsule to be slightly higher than the gas pressure and the water pressure in a water returning pipe in a blocking chamber, correcting the water pressure in the water returning pipe, measuring the running water vector parameters, starting an electronic recorder and providing corresponding water source pressure after the water pressure in the water returning pipe is adjusted to a reasonable water pressure scope, recording water flow data and other related data after stabilizing, processing and analyzing collected data to form corresponding running water vector graph of the measuring section, and repeating the above steps to sequentially measure the bored holes. Multi-section and synchronous measuring top-board water guiding cracking section at any angle can be realized.