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. <EOS>