Abstract: Computational neural science is a new branch of neuroscience originating from current research ontheory of computational vision.The goal of it is to find a new interdisplinary way to deal with brain information processing.The research involves artificial intelligence engineering,neuroscience,etc.The paper introduces collective computational properties of neural network,mainly on that of the perceptual framework advanced by Hopfield and its application in vision research as well.Then we analyse themeaning of Hopfield model.