The invention discloses a novel concrete bridge deck with channels at the bottom, and belongs to the technical field of bridge construction. The novel concrete bridge deck comprises a plurality of concrete bridge deck segments connected through cementing; a plurality of channels are arranged at the bottom of each concrete bridge deck segment. The novel concrete bridge deck is simple in structure and convenient to transport and mount; the channels matched with steel beams are arranged at the bottom of the concrete bridge deck to form novel self-locking steel and concrete connecting pieces, so that the problems that a steel and concrete bonding surface is corroded, concrete cracks and the quality of post-poured concrete is hard to control can be effectively solved.