A variable stiffness stator end bracket structure is disclose, and comprises a bracket plate, tie rope, conformal felt composition, the invention utilizes a special stator end bracket structure, binding rope, Flexible installation and adjustment of cushion blocks, conformal felt, On the premise of ensuring that the structural strength has enough safety factor, The stator end support stiffness canbe changed, so that the stator end stiffness can be changed, and the end vibration frequency can be adjusted, so that the whole vibration mode of the generator stator winding can meet the relevant standards and contract requirements, and the generator operation safety can be ensured.