The invention relates to a highway bridge damping support which comprises an upper steel plate, a lower steel plate and a rubber sealing layer arranged between the upper steel plate and the lower steel plate in a sleeving mode. Rubber layers and steel plate layers are arranged in the rubber sealing layer in parallel and at intervals. The rubber sealing layer is of a cylinder structure. At least one circle of groove is formed in the upper surface of each rubber layer. The grooves are filled with energy dissipation liquid. First limiting rods are arranged between the rubber sealing layer and a rotating ball. Each first limiting rod is sleeved with a damping component. One end of each damping component is fixed to the bottom face of the rubber sealing layer, and the other end of each damping component is fixedly connected with the upper surface of the rotating ball. The rotating ball is in contact connection with the lower steel plate. Through the arrangement of the energy dissipation liquid, the earthquake response of a structure can be relieved, and the anti-seismic capacity of the structure is improved. Through the arrangement of the rotating ball and the damping components, kinetic energy generated by earthquakes can be converted into potential energy, and the damping function in the horizontal direction and the vertical direction is achieved.