Disclosed is an apparatus for processing a radar signal, including: a transmitting unit which irradiates a plurality of baseband signals as a plurality of division band penetration signals to a target object based on a channel frequency; a receiving unit which receives a plurality of reflection signals reflected from the target object to integrate the received reflection signals as an integration band response signal; and a control unit which sets the channel frequency so that at least some bands of adjacent division band penetration signals among the plurality of division band penetration signals are overlapped with each other.