A monitor system of a vehicle outside comprising: image-measured distance detection means for detecting a distance data between a vehicle and a three-dimensional object existing in front of the vehicle based on information of an image in front of the vehicle; laser-measured distance detection means for detecting the distance data between the vehicle and the three-dimensional object existing in front of the vehicle on the basis of the information of a laser radar by projecting a laser beam from the vehicle; and distance data coordinating means (5c and 5d) comprising a distance data coordinating section and a three-dimensional object detection processing section, said distance data coordinating section being adapted for coordinating the distance data detected by the image-measured distance detection means and the distance data detected by the laser-measured distance detection means on the basis of detection states of the image-measured distance detection means and the laser-measured distance detection means and values of the distance data detected by the image-measured distance detection means and the distance data detected by the laser-measured distance detection means, to create final distance data, and said three-dimensional object detection processing section being adapted for recognizing the three-dimensional object which exists in front of the vehicle based on the final distance data, characterized in that: when distance data of a first segment among the final distance data that has been obtained by the laser-measured distance detection means has a value of 40 m or more, when a longitudinal direction difference between the distance data of the first segment and distance data of a third segment among the final distance data that has been obtained by the laser-measured distance detection means is ± 0.5 m or less, and when a lateral direction interval between the distance data of the first segment and the distance data of the third segment is 2 m or less, distance data of a second segment between the first segment and the third segment that has been obtained by the image-measured distance detection means and is located at a position farther than the distance data of the first segment is eliminated. image-measured distance detection means for detecting a distance data between a vehicle and a three-dimensional object existing in front of the vehicle based on information of an image in front of the vehicle; laser-measured distance detection means for detecting the distance data between the vehicle and the three-dimensional object existing in front of the vehicle on the basis of the information of a laser radar by projecting a laser beam from the vehicle; and distance data coordinating means (5c and 5d) comprising a distance data coordinating section and a three-dimensional object detection processing section, said distance data coordinating section being adapted for coordinating the distance data detected by the image-measured distance detection means and the distance data detected by the laser-measured distance detection means on the basis of detection states of the image-measured distance detection means and the laser-measured distance detection means and values of the distance data detected by the image-measured distance detection means and the distance data detected by the laser-measured distance detection means, to create final distance data, and said three-dimensional object detection processing section being adapted for recognizing the three-dimensional object which exists in front of the vehicle based on the final distance data, detection states of the image-measured distance detection means and the laser-measured distance detection means and values of the distance data detected by the image-measured distance detection means and the distance data detected by the laser-measured distance detection means, characterized in that: when distance data of a first segment among the final distance data that has been obtained by the laser-measured distance detection means has a value of 40 m or more, when a longitudinal direction difference between the distance data of the first segment and distance data of a third segment among the final distance data that has been obtained by the laser-measured distance detection means is ± 0.5 m or less, and when a lateral direction interval between the distance data of the first segment and the distance data of the third segment is 2 m or less, distance data of a second segment between the first segment and the third segment that has been obtained by the image-measured distance detection means and is located at a position farther than the distance data of the first segment is eliminated. when distance data of a first segment among the final distance data that has been obtained by the laser-measured distance detection means has a value of 40 m or more, when a longitudinal direction difference between the distance data of the first segment and distance data of a third segment among the final distance data that has been obtained by the laser-measured distance detection means is ± 0.5 m or less, and when a lateral direction interval between the distance data of the first segment and the distance data of the third segment is 2 m or less, distance data of a second segment between the first segment and the third segment that has been obtained by the image-measured distance detection means and is located at a position farther than the distance data of the first segment is eliminated.