The invention discloses a transformer dismantling mechanism capable of being operated by one person. The transformer dismantling mechanism includes a square base, a rotating tower is mounted at the middle of the top surface of the base, and a lifting mechanism is mounted on the upper portion of the rotating tower. A vertical pressing mechanism, a detection device, a two-opening up-and-down cuttingmechanism and a three-opening up-and-down cutting mechanism are further mounted on the rotating tower. A fixing device and a fixing tower are further mounted on the base. A transverse extrusion mechanism and a horizontal cutting mechanism are mounted on the fixing tower. A man-machine interaction terminal electrically connected with each aforementioned device and mechanism is mounted on the fixing tower. Transformers can be lifted, moved and positioned easily through the transformer dismantling mechanism, and the transformers are quickly disassembled into different components or the transformer components are classified according to material difference. One person can dismantle and destruct multiple transformers simultaneously, and the transformer dismantling mechanism is simple to operate, saves time and labor and reduces cost.