The invention discloses a bridge that facilitates maintenance of an expansion joint. The bridge comprises an abutment body, an abutment back wall, supports and a main beam, and the abutment back wallis formed by extending vertically upwards to one side of the upper surface of the abutment body; the supports are arranged on the other side of the upper surface of the abutment back wall in group, the main beam is erected on the supports, a reserved joint and a maintenance channel which are communicated with each other sequentially from top to bottom are formed between the main beam and the abutment back wall, and the expansion joint is arranged in the reserved joint. The maintenance is arranged between the abutment back wall and the main beam, so that convenience is brought to maintenance personnel to maintain the expansion joint through the maintenance channel.