A fixed rod clamping structure for a minimally invasive surgery contains: a handle a joint module including a first sprocket and a second sprocket engaging with the first sprocket, with the first sprocket connecting with the handle a curved bar coupling with the second sprocket of the joint module a fitting post connecting with the curved bar and having an orifice and a through hole, with the orifice being perpendicular to and communicating with the through hole and having inner threads formed on one end thereof adjacent to the curved bar and a positioning column including a rotatable head, a pin, and outer threads formed on one end thereof adjacent to the rotatable head. The outer threads are screwed with the inner threads of the orifice.
