A device for analyzing sleep breathing using a radar, comprising: a) a transceiver configured to transmit a radar signal (310, 410) toward a subject and receive the radar signal (310, 410) 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 (310, 410); c) a sleep breathing pattern information generation unit configured to generate sleep breathing pattern information (511, 512, 610, 620) of the subject by comparing the radar signal (310, 410) 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 (511, 512, 610, 620); 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 (310, 410) 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 a radar signal (310, 410) toward a subject and receive the radar signal (310, 410) 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 (310, 410); c) a sleep breathing pattern information generation unit configured to generate sleep breathing pattern information (511, 512, 610, 620) of the subject by comparing the radar signal (310, 410) 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 (511, 512, 610, 620); 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 (310, 410) 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.