A blood glucose monitoring system is designed for diabetics with the convenience of measurement,long-term storage of blood sugar level data and getting diagnosis in time. Tele-consultation and tele-monitoring are implemented via this system, which consists of blood glucose meters based on Android mobile phone. The blood glucose meter based on MSP430 is connected to the mobile phone through the Bluetooth,which not only has the measurement function, but use the SMS to send data and receive experts diagnosis; the Smart phone can easily send/receive short messages and the storage, the management and the maintenance, etc. According to the test, the results show that this system fulfills the predetermined design aims.