An endoscopic surgery device for the insertion and recovery of a haemostatic plug at the surgical site. The device comprises a tubular body suitable for slidingly housing the plug, and a plunger slidingly engageable within the tubular body so as to push the plug outside the body, and to position it at the surgical site. The plug is connected to a locator that is radio-opaque, has a suitable color, and has a specific weight that allows it to float relative to the internal organs, blood or other fluids present at the surgical site. A loop is provided at a distal end of the plunger and at a proximal end of the plunger, a first handle is provided for actuating the plunger so as to grip the ball and recover the plug after use by retracting the plunger inside the tubular body.