A dump truck comprising: a body frame having front wheels and rear wheels; a vessel rotatably supported on the body frame through a support shaft, a hoist cylinder for pivotally moving the vessel about the support shaft when telescopically operated; an external sensor for detecting a bund, the external sensor being provided at a front side of the body frame; and a traveling control device for controlling travel of the dump truck, characterized in that the traveling control device includes: a bund identification module that identifies the shape of the bund provided on a traveling surface based on information from the external sensor, the bund identification module including a traveling surface detection module for detecting the traveling surface of the dump truck and a bund angle changing position detection module for detecting a position at which a wall surface of the bund changes from the traveling surface in angle and a bund angle detection module for detecting the angle of the wall surface of the bund, and a bund trailing edge position module for detecting a trailing edge position of the bund; and a target stop position calculation module that calculates a target stop position by a horizontal distance between the external sensor and the bund in a case where one of the rear wheels of the dump truck is in contact with a wall surface of the bund based on output values from the traveling surface detection module and the bund angle changing position detection module; and the traveling control device is configured to stop travel of the dump truck going backwardly when the horizontal distance between the external sensor and the bund which is measured by the external sensor becomes the target stop position of the dump truck. a body frame having front wheels and rear wheels; a vessel rotatably supported on the body frame through a support shaft, a hoist cylinder for pivotally moving the vessel about the support shaft when telescopically operated; an external sensor for detecting a bund, the external sensor being provided at a front side of the body frame; and a traveling control device for controlling travel of the dump truck, characterized in that the traveling control device includes: a bund identification module that identifies the shape of the bund provided on a traveling surface based on information from the external sensor, the bund identification module including a traveling surface detection module for detecting the traveling surface of the dump truck and a bund angle changing position detection module for detecting a position at which a wall surface of the bund changes from the traveling surface in angle and a bund angle detection module for detecting the angle of the wall surface of the bund, and a bund trailing edge position module for detecting a trailing edge position of the bund; and a target stop position calculation module that calculates a target stop position by a horizontal distance between the external sensor and the bund in a case where one of the rear wheels of the dump truck is in contact with a wall surface of the bund based on output values from the traveling surface detection module and the bund angle changing position detection module; and the traveling control device is configured to stop travel of the dump truck going backwardly when the horizontal distance between the external sensor and the bund which is measured by the external sensor becomes the target stop position of the dump truck. a bund identification module that identifies the shape of the bund provided on a traveling surface based on information from the external sensor, the bund identification module including a traveling surface detection module for detecting the traveling surface of the dump truck and a bund angle changing position detection module for detecting a position at which a wall surface of the bund changes from the traveling surface in angle and a bund angle detection module for detecting the angle of the wall surface of the bund, and a bund trailing edge position module for detecting a trailing edge position of the bund; and a target stop position calculation module that calculates a target stop position by a horizontal distance between the external sensor and the bund in a case where one of the rear wheels of the dump truck is in contact with a wall surface of the bund based on output values from the traveling surface detection module and the bund angle changing position detection module; and the traveling control device is configured to stop travel of the dump truck going backwardly when the horizontal distance between the external sensor and the bund which is measured by the external sensor becomes the target stop position of the dump truck.