A radar apparatus, comprising: an approaching velocity calculating module configured to calculate an approaching velocity of a target object from which a reflection wave caused by an electromagnetic wave is obtained, based on a change in one of phase and frequency of the electromagnetic wave transmitted and received by a radar antenna, the approaching velocity being a velocity component in a transmission direction of the electromagnetic wave; a memory configured to store a plurality of approaching velocities calculated in a plurality of scans, respectively, for every target object; a tracking determining module configured to determine whether to track the target object based on the approaching velocity of the target object; wherein the tracking determining module includes a tracking candidate determining submodule configured to determine whether the target object is a tracking candidate based on the approaching velocity calculated in a single scan, and a tracking target determining submodule configured to determine whether to track the target object determined as the tracking candidate by the tracking candidate determining submodule, based on the condition that the plurality of approaching velocities of the target object stored in the memory is continuously at or above a predetermined threshold, which is greater than zero, for at least a predetermined number of scans; a tracking module configured to automatically track the target object determined to be tracked by the tracking determining module; and a display controlling module configured to display the tracking result of the tracking module along with a radar image. an approaching velocity calculating module configured to calculate an approaching velocity of a target object from which a reflection wave caused by an electromagnetic wave is obtained, based on a change in one of phase and frequency of the electromagnetic wave transmitted and received by a radar antenna, the approaching velocity being a velocity component in a transmission direction of the electromagnetic wave; a memory configured to store a plurality of approaching velocities calculated in a plurality of scans, respectively, for every target object; a tracking determining module configured to determine whether to track the target object based on the approaching velocity of the target object; wherein the tracking determining module includes a tracking candidate determining submodule configured to determine whether the target object is a tracking candidate based on the approaching velocity calculated in a single scan, and a tracking target determining submodule configured to determine whether to track the target object determined as the tracking candidate by the tracking candidate determining submodule, based on the condition that the plurality of approaching velocities of the target object stored in the memory is continuously at or above a predetermined threshold, which is greater than zero, for at least a predetermined number of scans; a tracking module configured to automatically track the target object determined to be tracked by the tracking determining module; and a display controlling module configured to display the tracking result of the tracking module along with a radar image.