Grammar is one of the important parts in the pursuit of Japanese language by all Japanese language students in particular and those who have a passion for Japanese in general. Grammar is always necessary when creating a complete sentence to be able to communicate and communicate with the opponent. However, especially at the intermediate level of Japanese, many students will find it confusing and difficult to understand and remember for a long time. Therefore, this article is completed based on survey results from 26 students of FPT University in Ho Chi Minh City. The article uses analytical and qualitative methods to find appropriate and effective methods of memorizing intermediate Japanese grammar in the learning process. Through the survey results, it shows that FPT University students have many methods of memorization through various forms such as books and newspapers, application to daily communication and practice. These methods are all effective for improving the Japanese grammar learning process of Japanese language students at FPT University.