A surgical system for small-pit closure in hollow organs is provided. The surgical system is provided with a surgical device for small-pit closure in hollow organs, with the surgical device including the following components: a suture-member cartridge in which a pair of parallel tubular members that accommodate respective suture members are feedably connected to the rear ends of a pair of arrow-shaped members that latch into tissue in a hollow organ; an auxiliary shooting unit having plungers respectively provided in a pair of cylinders open at both ends; a hollow-organ-insertable unit configured of a pair of flexible air tubes; and a gas shooter that sequentially discharges compressed air or high-pressure gas into the open-ended cylinders in response to operations of a trigger, for sequentially ejecting the arrow-shaped members and driving the same into tissue in the hollow organ on both sides of a small pit site.