Abstract: The present invention relates to an apparatus for analyzing concentration and the like of components of urine, and more particularly, to an apparatus for analyzing concentration and the like of components of urine by using ATR-IR (Attenuated Total Reflectance Infrared Spectroscopy) and a method thereof. The apparatus for analyzing components of urine comprises a toilet bowl which has a recessed or flat-shaped urine collecting part; a piping part for guiding the urine collected from the urine collecting part; and an analyzing part for analyzing the components of the urine collected at the urine collecting part, wherein the urine collecting part is formed at an inner front side of the toilet bowl, the analyzing part comprises ATR, and the analyzing part is directly attached to the toilet bowl.