SUMMARYThis invention medical technology relates to medical devices more specifically to method of measuring and monitoring glucose levels in the blood.Throughout the described process of this invention of non-invasive monitoring of blood glucose levels, providing temperature measurement and analysis of various organs of the body, characterized in that the temperature measurement is performed equally in insulin dependent and non-insulin dependent tissues of the body while the data of the blood glucose level is obtained by analyzing the relationship between glucose level and the temperature difference between insulin dependent and non-insulin dependence in the bodies organs.This newly invented device implementing this method includes a measuring unit, a unit for processing the data received, and a unit for inputting/outputting instructions, and displaying the results of data-processing. It is characterized in that the temperature-measuring unit is in the form of a thermo imager, and the unit for processing the data produced can analyze the temperature difference recorded in the insulin dependent and non-insulin independent tissues of the body, and comparing the value obtained from the correlation tables reflecting the physiological characteristics of different categories of the population.