ComputerArt(CA)isaveryimportantfieldincomputerapplications.Basedontheanalysisandsummarizationofthepaintingprocess,anewmethodofCAcreationusingthetechniquesofcom-putergraphicsandtheexpertsystemispresentedinthispaper.Thereductionofpatternmodel,simu-lationofspecialeffect,representationofaestheticsknowledgeandfuzzyjudgementofbeautyareinclud-edbythisnewmethod.