Take previous Olympic Games athletics performance a s reference, use neural network algorithms’ relativ e strong self fault-tolerant ability and self-training learn ing ability as well as other good advantages to con struct BP neural network model, carry out specific application and v erification on the model, and research on No. 1 per formance by establishing and applying neural network. Research result shows that BP neural network can be used for sports performance predicting, so neural network model pro vides extremely wide development space for sports performance prediction model researching.