The major deficit of students with high-functioning autism had been on the area of social interaction, especially social language. The important part to help students with autism to get along with others was to teach social language, or "intra-verbal behavior" defined by B. F. Skinner. This paper first introduced concepts of intra-verbal according to B. F. Skinner's "Verbal Behavior". Secondly, the major teaching method focused on topical conversation, more complicate intra-verbal behaviors, and proposed five parts of sequence curriculum: simple stimulus connection training, life related cause-effect training, free association with known words, topical conversation, and non-verbal behavior training. Evident-based research was introduced at the end of the paper.