Based on Hebb learning rule and lateral interaction,a neuralnetwork with the function of perceptual learning was developed.For example,the process of Chinese characters learning was simulated,which shows the transition of perceptual mode from global perception to local perception.The transition of perceptual mode is based on the structural changes of the network weights,i.e.the weights change from the random distribution to the block distribution.Lateral interaction in local range is the core mechanism that leads to the formation of global order.