The invention discloses a boarding bridge for transporting passengers between a waiting building and a cruise ship. The boarding bridge comprises a first rack, a second rack, a connecting passageway, a ship-butting port device, a first fixed short passageway, a second lifting short passageway, a first fixed long passageway and a first lifting long passageway, wherein the first rack and the second rack are arranged in parallel at a predetermined interval; the connecting passageway is fixed at one end of the first rack and is butted with the waiting building; the ship-butting port device is arranged at the other end of the first rack and comprises a first lifting short passageway and a ship-butting port; the ship-butting port is arranged at one side of the first lifting short passageway and is used for butting with the cruise ship; the first fixed short passageway is fixed at one end of the second rack; the second lifting short passageway is arranged at the other end of the second rack; the first fixed long passageway is connected between the first connecting passageway and the first fixed short passageway; and the first lifting long passageway is connected between the other side of the first lifting short passageway and the second lifting short passageway. The boarding bridge disclosed by the invention disintegrates the fall via at least two long passageways, flattens the slope and can provide safe and comfortable environment for passengers even when the distance between the waiting building and the cruise ship is short.