The utility model discloses an interception pocket type leaking stoppage tool, include: the protective sheath subassembly, for having the last port and the lower tubular structure of port, and its lateral wall is equipped with the protective sheath and divides the discharge orifice, the guide shoe, the liftoff shutoff of detachable in the lower port of protective sheath subassembly, shunting assembly, for having the last port and the lower tubular structure of port, shunting assembly's last port connects with the butt joint of the last port of protective sheath subassembly, shunting assembly'slower port and protective sheath reposition of redundant personnel pore pair, and shunting assembly's lateral wall is equipped with the shunt tubes through -hole that is linked together with the lumen of protective sheath subassembly, and position that shunting assembly lies in shunt tubes through -hole low reaches is equipped with plugging base, can the shutoff be flowed into the thick liquid ofshunting assembly's lower port on the plugging base by the plug that falls, interception bag subassembly sets up in the lumen of protective sheath subassembly, just communicates with each other withthe shunt tubes through -hole. So set up, the utility model provides an interception pocket type leaking stoppage tool, its problem that can effectively solve open crack and solution cavity type leakage leaking stoppage existence.