Disclosed is a laparoscopic port site closure device. The device is configured such that a cartridge receiving a surgical suture therein is provided at a fore-end of a needle guide for port site closure； the surgical suture is caught in a needle tip that is pierced through a body tissue by being guided by the needle guide； and when the needle is withdrawn, the surgical suture is pulled out along a path through which the needle was pierced into the tissue, and the surgical suture is tied outside a patient's body, thereby being capable of closing a laparoscopic port site.
