摘要： A Diabetes monitoring method has been developed using the blood glucose measurement made non-invasively. Glucose is the prime factor which is considered for the diagnosis of Diabetes mellitus. The common method for determining the glucose content in blood involves hand pricking by taking the blood samples. Regular pricking can cause pain and inconvenience which can even lead to calluses on the fingers and poor blood flow. Non-invasive technique is the recent advancement which does not involve drawing of any human interstitial fluids. The paper involves the design of a noninvasive glucose level detector using the Near Infrared (NIR) Spectroscopy concept and a smart device. The signals send through the fingertip will be absorbed based on vibrational movements. The result is obtained as voltage variations. The data thus obtained is then interfaced to an android device via Bluetooth to a monitoring android application which assist in keeping track of the glucose level.