An introduction is made to the frame, main properties of the Shaoxing Thunder and Lightning Positioning System and its development and application, based on the principles of the lightning mix-binding algorithm. The analysis results indicate that the system, as a complex sounding network with multiple functions (lighting detecting and positioning and data processing), is able to position lightning relatively correctly, and the sounding data can be used for a variety of applications. Through analyzing these data, it is possible to find out the formation and evolution regularities of thunders and lightning to make contributions to the forecasting and warning of thunder and lighting disasters.