Aiming at the problem of the short working-life of radio frequency identification（ RFID） sensing terminal

a self-powered method using photovoltaic cell for solar energy collecting and the super capacitor for energy saving is proposed. The design of the overall structure of the terminal and the design of the power supply module are described detailed

and the actual work test is carried out. Test results show that when the reader query cycle is 3 s

the power supply module can continue to discharge longer than 27 h; according to current test results during one month

the theoretical expected working-life of the sensing terminal is about 5 years

and effctive communication distance of sensing terminal exceed 17 m

and it can obtain real-time acquired information by sensor with high-precision.