PROBLEM TO BE SOLVED: To provide a traveling control device capable of easily stopping a work vehicle at a start position accurately. SOLUTION: The traveling control device A for controlling the traveling of a work vehicle 1 is located in an automatic traveling permission area R which is an area set in a work area W where the work vehicle 1 is performed. A position determination unit for determining whether or not the vehicle 1 is provided, and when the position determination unit determines that the work vehicle 1 is located in the automatic travel permission area R, the start of work travel included in the automatic travel permission area R It is possible to shift to the automatic driving mode in which the vehicle automatically travels toward the position S. [Selection diagram] Fig. 6【課題】作業車を正確に開始位置に停止させることが容易となる走行制御装置を提供する。【解決手段】作業車1の走行を制御する走行制御装置Aであって、作業車1が作業走行が行われる作業地W内に設定された領域である自動走行許可領域R内に位置しているか否かを判定する位置判定部を備え、位置判定部により作業車1が自動走行許可領域R内に位置していると判定された場合に、自動走行許可領域Rに含まれる作業走行の開始位置Sに向けて自動走行を行う自動走行モードへの移行が可能になる。【選択図】図6