The present invention relates to a non-contact respiration sensing apparatus using radar, and a method thereof. The non-contact respiration sensing apparatus using radar of the present invention comprises: a radar for transmitting a transmission signal in a specific space to receive a wireless signal returning by being reflected to a measurement object a clutter removal unit for receiving measured raw data from the radar, and removing all clutter signals except for a signal for a corresponding measurement object a measurement object detecting unit for detecting a position of the corresponding measurement object by comparing a gap between the radar and the position of the corresponding measurement object with a predefined threshold value and a signal from which a clutter is removed by the clutter removal unit a measurement object distance measuring unit for calculating the distance between the corresponding measurement object and the radar through a time of arrival (TOA) of a signal detected on the basis of the position of the corresponding measurement object detected by the measurement object detecting unit a measurement object state determining unit for determining a static state or a dynamic state of the corresponding measurement object on the basis of the distance between the corresponding measurement object and the radar calculated by the measurement object distance measuring unit and a measurement object respiration sensing unit for sensing a respiration of the corresponding measurement object during the static state of the corresponding measurement object determined by the measurement object state determining unit. According to the present invention, a respiration cycle of a patient or an individual in a vehicle, a hospital, a personal living space, and the like can be effectively observed.COPYRIGHT KIPO 2018본 발명은 레이더를 이용한 비접촉식 호흡 감지 장치 및 그 방법에 관한 것으로, 특정 공간 내에 송신신호를 방사하여 측정 대상에 반사되어 돌아오는 무선신호를 수신하는 레이더와, 레이더로부터 측정된 원시 데이터를 제공받아 해당 측정 대상에 대한 신호를 제외한 모든 클러터(clu
