A rebar tying robot configured to tie a plurality of first rebars and a plurality of second rebars intersecting the plurality of first rebars at points where the plurality of first rebars and the plurality of second rebars intersect. The rebar tying robot may include a rebar tying machine, a conveying unit configured to convey the rebar tying machine, and a control unit configured to control an operation of the conveying unit. The conveying unit may include a crawler configured to move on the plurality of first rebars and the plurality of second rebars.