CALL has been changed as it changes in the foreign language education theory and the science and technology develops. It has changed from structural CALL to integrated CALL. Introducing CALL into Japanese-language education has increased. However, the research of the CALL teaching material is still extremely little. Here, a function and an educational model of a Japanese grammar CALL teaching material are researched. Here, it takes a general view of the previous work first of all. The problem and the countermeasure of a Japanese, grammatical education are discussed. Next, Japanese grammar CALL teaching materials are compared. Finally, I want to propose a possible educational model through the practice example.