A long bone fracture resetting robot comprises an engine base (1) and multiple sets of electro-hydraulic drivers (4). A support (5) capable of moving up and down is slidably connected on the engine base (1), and a six-degree-of-freedom parallel robot (2) is disposed on the support (5). The six-degree-of-freedom parallel robot (2) comprises multiple first hydraulic cylinders (6). The number of the first hydraulic cylinders (6) is the same as the number of the electro-hydraulic drivers (4), and one-to-one correspondence exists between the multiple first hydraulic cylinders (6) and the multiple electro-hydraulic drivers (4) and they are in a driving connection. The long bone fracture resetting robot can plan a movement track of the six-degree-of-freedom parallel robot (2) according to a CT scan before a surgery, and precisely control movement of a wounded limb through the six-degree-of-freedom parallel robot (2), so as to complete resetting of the wounded limb. By using the long bone fracture resetting robot to perform a resetting surgery, only one CT scan is needed； therefore, the quantity of radiation on a doctor and a patient is reduced. In addition, the movement of a wounded limb is controlled through the six-degree-of-freedom parallel robot (2)； therefore, the resetting precision is high, and the surgical stability is good.
