Abstract: The classification of the rules of the cellular automaton is a classical topic of the study on the whole feature of Boolean functions.Since 1984,4 kinds of classical classification have been proposed by Wolfram.The two dimensional encoding of 256 functions in classical classification model doesn’t show obvious distribution regularity in the condition of ordinal arrangement.We used the encoding mode of variable value logic system to show the pattern of existing cellular automaton classification,and used several types of variable value logic coding to show the result of classical classification by arranging the 256 functions in the 16*16 matrix image.In this mode,the variable value encoding mode shows different characteristics of symmetry.At last the different encoding sequences and encoding arrangement were listed.

Key words: Variable value logical structure,Cellular automata,Classification,Symmetric distribution