An energy storage bridge includes a plurality of bridge girders and a bridge deck. The bridge girders include multiple steel pipes for carrying loads and storing energy in a form of compressed air contained therein and a plurality of web plates. The bridge deck is disposed on top of the bridge girders and configured for loading live loads. The steel pipes are assembled in at least a row aligned vertically. Each web plate connects a row of the steel pipes at a center line separating the steel pipes into two halves. Alternatively, a steel pipe is connected by two webs at the two sides of the pipe. Each bridge girder forms an energy storage unit between two consecutive movement joints of the energy storage bridge. Every two consecutive storage units are joined by a high pressure flexible pipe to form a giant energy storage unit. Each energy storage unit is provided with inlet and outlet pipes to in-take compressed air from electric compressors driven by the grid power or by regenerated powers, and to release the compressed air to generate electricity. The bridge girders are disposed at a predetermined transverse spacing across the width of the bridge deck and configured for supporting the bridge deck as a roadway surface.