Crane vehicle, comprising: - a traveling body on which a crane device is mounted; - a driver seat arranged on one side in a width direction of the traveling body, the driver seat having a steering wheel for determining a steering angle of wheels of the traveling body; - a first sensor that outputs a signal corresponding to a distance to an obstacle located on the other side in the width direction; - a second sensor for outputting a signal that corresponds to the steering angle of the steering wheel; - a third sensor for outputting a signal that corresponds to the speed of the traveling body; - a controller; and - a display, wherein - the controller - generates a second object that represents an obstacle detected by the first sensor, and - displays an obstacle display image including a first object that represents the crane vehicle stored in a memory and the second object on the display, - the distance between the first object and the second object corresponds to the distance detected by the first sensor, - the controller - sets the color of the second object to a first predetermined color when the distance to the obstacle is equal to or greater than a threshold distance stored in the memory, - sets the color of the second object to a second predetermined color different from the first predetermined color when the distance to the obstacle is less than the threshold distance stored in the memory, - determines whether the obstacle detected by the first sensor is a moving object or a fixed object from the signals input from the first sensor, the second sensor, and the third sensor, and - sets the second predetermined color to a third predetermined color different from the second predetermined color in response to a determination that the object is a moving object. - a traveling body on which a crane device is mounted; - a driver seat arranged on one side in a width direction of the traveling body, the driver seat having a steering wheel for determining a steering angle of wheels of the traveling body; - a first sensor that outputs a signal corresponding to a distance to an obstacle located on the other side in the width direction; - a second sensor for outputting a signal that corresponds to the steering angle of the steering wheel; - a third sensor for outputting a signal that corresponds to the speed of the traveling body; - a controller; and - a display, wherein - the controller - generates a second object that represents an obstacle detected by the first sensor, and - displays an obstacle display image including a first object that represents the crane vehicle stored in a memory and the second object on the display, - generates a second object that represents an obstacle detected by the first sensor, and - displays an obstacle display image including a first object that represents the crane vehicle stored in a memory and the second object on the display, - the distance between the first object and the second object corresponds to the distance detected by the first sensor, - the controller - sets the color of the second object to a first predetermined color when the distance to the obstacle is equal to or greater than a threshold distance stored in the memory, - sets the color of the second object to a second predetermined color different from the first predetermined color when the distance to the obstacle is less than the threshold distance stored in the memory, - determines whether the obstacle detected by the first sensor is a moving object or a fixed object from the signals input from the first sensor, the second sensor, and the third sensor, and - sets the second predetermined color to a third predetermined color different from the second predetermined color in response to a determination that the object is a moving object. - sets the color of the second object to a first predetermined color when the distance to the obstacle is equal to or greater than a threshold distance stored in the memory, - sets the color of the second object to a second predetermined color different from the first predetermined color when the distance to the obstacle is less than the threshold distance stored in the memory, - determines whether the obstacle detected by the first sensor is a moving object or a fixed object from the signals input from the first sensor, the second sensor, and the third sensor, and - sets the second predetermined color to a third predetermined color different from the second predetermined color in response to a determination that the object is a moving object.