The biggest problem of deaf education is language education. By newly opening of ``therapeutic education activity`` in the third education curriculum, the discussion of dactylology education, which had been focused just on the speech education ever since, has started. From the 7th education curriculum the new education purpose which makes the language education fits to the each person`s language appetite to raise-up the language ability has been set up. In this type of deaf and dumb educations, using of dactylology let the deaf children be bilingual. But in the education site, the dactylology only has meaning of first communication device but not the meaning for the study of the further step of second communication device like acquire of literal language and spoken language. So, here, by the precedent study we will watch the learning process of dactylology of deaf children, and will find out the meaning for the language education for deaf children language education.