In this time, we examined that how children with autism solve logic puzzle. Seventeen school age children with autism and 17 age- and ability-matched typical children took port in the experiments. Two toys (a doll of robot and electric switch toy) were set on an architectural replica of house, and these were on a white styrofoam board. Children were instructed to search arbitrary rule that is relation between the position of robot and an on/off of electric switch toy. Children with autism solve the rule of logical AND and XOR problem (exclusive or problem) as good as typical children, but it was more difficult for children with autism to solve the rule of XOR in the big house replica on which there are many replicas of furniture than typical children. There were so many toys that Children with autism lost track of conceptualizing the pattern.