A bloodless glucose measuring and monitoring device which comprises a main computer and a PCB with a LCD display a microprocessor a blood glucose detection circuit connected to the microprocessor which includes a blood glucose detection module and a memory module, a power module and a timekeeping module connected to the microprocessor. The PCB comprises a body resistance acquisition circuit with a body resistance acquisition module electrically connected to the microprocessor for measuring a body resistance between two points of skin of a human body and communicates with the microprocessor such that the body resistance obtained by the body resistance acquisition module is translated into a blood glucose value through the microprocessor and then the blood glucose value is displayed through the LCD display of the main computer.
