The invention discloses a rolling device of hot-rolled steel channel for a pipe ditch cover plate and a production method. The steel channel comprises a web plate, a first wing plate and a second wing plate, wherein the web plate is rectangular, and two ends of the web plate are respectively connected with the first wing plate and the second wing plate. The rolling device comprises a rolling device body for rolling a hot-rolled steel channel body for the pipe ditch cover plate and a finishing mill for rolling web plate outer side stripes and flange outer side stripes on the hot-rolled steel channel body for the pipe ditch cover plate. The finishing mill is provided with an upper horizontal roller and a lower horizontal roller, and the central axis of the upper horizontal roller and the central axis of the lower horizontal roller are mutually parallel. The finishing mill is provided with a left vertical roller and a right vertical roller, and the central axis of the left vertical roller and the central axis of the right vertical roller are mutually parallel. By the adoption of the technical scheme, the production period of a streel structure production enterprise is shortened, the manufacturing cost of the enterprise is saved, and the stability and rigidity of the hot-rolled steel channel for the pipe ditch cover plate are improved.