The present invention relates to a device and method for quantitatively measuring an analyte using a camera. More particularly, to capture the identification code required for obtaining an accurate analysis result for the analyte to be analyzed, to capture the result of the reaction of the analyte using a camera without additional equipment, and to read the identification code and the result of the reaction of the analyte, the device of the present invention comprises: a camera for capturing a camera recognition area of an analyte kit, which contains an analyte reaction result obtained by the reaction of the analyte and an identification code for the analyte kit; an image-processing unit for separating the analyte reaction result image and the identification code image from images of the camera recognition area of the analyte kit captured by the camera; a reading unit for reading the analyte reaction result image and the identification code image; and a control unit for enabling the read result of the analyte reaction result image to be processed using the read result of the identification code image.