The purpose of this study is to investigate the application of the Developmental Scale for Children with Autisum (DSCA) on different ability children with autism. The Scale was dynamic assessment form, with standardized assistant system (three steps) in scale administration. 108children with autism from 5 years to 8 years were served as subjects. They were divided in to 4 age groups according to DSCA age norm. 22 subjects whose DSCA age score below 4 years were retested DSCA after 10 months. 30 subjects whose DSCA age score above 4 years were tested WISC and PPVT. The result as follows: 1. Grouping by DSCA age score, the scores of DSCA subtests increased by age. There were significant differences in most different age groups. 2. Different age groups revealed almost the same profiles except age 4. Subtests, including Socialization. Language comprehension and Express produced relatively lower scores than other subtests. 3. Three-steps assistant system in administration of DSCA could effectively help different ability autistic children to raise their performance. 3rd step is more effective to lower age score children, with 2nd step is more helpful to higher age score children. 4. Results indicate that DSCA is not suitable for those children whose DSCA age score above age 4, WISC and PPVT will be suggested to take the place of DSCA. Limitations and suggestions for practical usage of DSCA were discussed.