A device for analyzing sleep breathing using a radar , comprising: a) a transceiver configured to transmit (S1010) a radar signal toward a subject and receive the radar signal reflected from the subject ; b) an average breathing signal calculation unit configured to calculate an average breathing signal of the subject based on the reflected radar signal ; c) a sleep breathing pattern information generation unit configured to generate sleep breathing pattern information of the subject by comparing the radar signal with the average breathing signal ; and d) a sleep breathing event detection unit configured to detect a sleep breathing event based on the sleep breathing pattern information ; characterized in that : e) the sleep breathing pattern information generation unit is further configured to generate breathing state information (510; 520) about sleep breathing of the subject including: e1) generating a first sleep breathing pattern information about sleep breathing of the subject based on whether the breathing state information continues; and e2) generating a second sleep breathing pattern information based on whether the breathing state information continues and a predetermined threshold value , f) wherein the sleep breathing pattern information generation unit is adapted to calculate the first sleep breathing pattern information and the second sleep breathing pattern information to have a value that is continued to be increased over time while the radar signal is smaller than the average breathing signal , and g) wherein the second sleep breathing pattern information is initialized at the predetermined threshold value and then increased again, and h) wherein the predetermined threshold value is a specific threshold time. a) a transceiver configured to transmit (S1010) a radar signal toward a subject and receive the radar signal reflected from the subject ; b) an average breathing signal calculation unit configured to calculate an average breathing signal of the subject based on the reflected radar signal ; c) a sleep breathing pattern information generation unit configured to generate sleep breathing pattern information of the subject by comparing the radar signal with the average breathing signal ; and d) a sleep breathing event detection unit configured to detect a sleep breathing event based on the sleep breathing pattern information ; e) the sleep breathing pattern information generation unit is further configured to generate breathing state information (510; 520) about sleep breathing of the subject including: e1) generating a first sleep breathing pattern information about sleep breathing of the subject based on whether the breathing state information continues; and e2) generating a second sleep breathing pattern information based on whether the breathing state information continues and a predetermined threshold value , e1) generating a first sleep breathing pattern information about sleep breathing of the subject based on whether the breathing state information continues; and e2) generating a second sleep breathing pattern information based on whether the breathing state information continues and a predetermined threshold value , f) wherein the sleep breathing pattern information generation unit is adapted to calculate the first sleep breathing pattern information and the second sleep breathing pattern information to have a value that is continued to be increased over time while the radar signal is smaller than the average breathing signal , and g) wherein the second sleep breathing pattern information is initialized at the predetermined threshold value and then increased again, and h) wherein the predetermined threshold value is a specific threshold time. <EOS>