The utility model discloses a machining tooling of a clamping rod of a floating fixture. The machining tooling comprises a ring-shaped tooling body, locating holes are formed in the tooling body in a peripheral direction at the same height, and the axis of each locating hole is coincidence with diameter of the tooling body. Threaded holes communicated with the locating holes are formed in an end face of the tooling body in a peripheral direction, and compression screws are connected with the threaded holes in a threading mode. Locating slots are formed in the tooling body, and the depth direction of each locating slot is the same as the diameter direction of the tooling body, and the distances from the bottoms of locating slots in the depth direction to the axial line of the tooling body is the same. The locating holes and the locating slots are used for limiting axial position and peripheral position of the clamping rod, and the compression screws are used for fixing the clamping rod, therefore, location of the clamping rod is accurate and clamping is reliable. The machining tooling can be matched with clamping jaws of a lathe and a grinder, a plurality of clamping rods can be machined one time through turning and grinding, machining efficiency is high, accuracy of arced faces on two ends of the clamping rod is guaranteed, and machining uniformity is good because a plurality of clamping rods are machined one time.