A new neural network with High-Dimension-Input Multi-Input layers based on production control is proposed; its construction figure and algorithm are given as well in this paper. Because the new neural network can be seen as the result of moving some input dot of BP neural network to its hide layers, it is of few weigh value. In addition as the position of input dots in new neural network may be chosen according to production flow, as long as the chose is suitable, it can obtain a better effect than BP neural network. This paper uses the new neural network to the modeling of hot steel rolling production quality and compares the result with that of BP neural network. The fact shows that as number of weight values is decreased, the new neural network is of fast leaning rate and simultaneously can get a better result than BP neural network.