Autism spectrum disorder (ASD) exhibits as many intellectual levels and functions as different levels of the spectrum. The purpose of this study was to find the cognitive characteristics of children with ASD through the analysis of the K-WISC-IV profile, an intelligence test conducted for participants in the K-CARS 2 standardization study. According to the criteria of K-CARS 2, the ASD group was classified into groups (standard, high-functioning) based on IQ of 80, and the subjects were 141 people aged 8-15 years (78 ASD; standard 50, high-functioning 28, 24 typical development children, and 39 clinical children). In this study, we first analyzed the overall intelligence quotient (FSIQ) of the K-WISC-IV, the average of the index scores, and the profile pattern. Second, the effect of the index scores of children with standard and high-functioning ASDs on the overall intelligence was examined. Third, an analysis was conducted to determine whether there is a meaningful difference between the IQ or subtest according to ASD, typical development children or clinical children. Finally, the correlation between autism symptoms and cognitive profile index scores of children with ASD was analyzed. Through the results of this study, it was possible to identify the cognitive characteristics shown through the K-WISC-IV profile of children with ASD, and there were parts that were consistent with previous studies such as the superiority of perceptual reasoning index scores by analyzing the research results. There are some parts that show differences from previous studies, so this has been dealt with in the discussion.