A bendable end-effector is described, used in endoscopic surgery which requires very large refraction angle, being capable of obtaining large internal space, as well as, transmitting safely a torque to a surgical instrument in curved state. The bendable end-effector includes a fixing block coupled at a driving unit, a bendable block coupled to the end of the fixing block and bending to a users desired direction and angle, and a surgical instrument coupled to the end of the bendable block.
