To provide conveyance facility capable of simply and inexpensively eliminating a step in a butting part without taking manufacturing precision and assembly precision (connection precision) into account.

This conveyance facility is constituted in such a way that a downward facing receive guide face 101 and an upward facing support guide face 103 are formed in a frame body 100 like a mold rail and a received roller 35 abutting on the receive guide face from below and a supported roller 36 abutting on the support guide face from above are provided in a movable traveling body 31 supported and guided in the frame body. The frame body is connected with a machine frame 1 side while its end faces are mutually butted. At least either of the received roller and the supported roller is guided on circular arc-like faces 114, 117 from a guide face to which an upper part corresponds and then is guided on a guide face to which a lower part corresponds from the circular arc-like face and passes through it in a butting part 111. By transferring at least either of the received roller and the supported roller onto the circular arc-like face from the guide face in the upper part and guiding it, it is separated from the guide face. Consequently, the traveling body passes through (crosses) in the butting part.