As microscope penetration has grown significantly in recent years, the number of clinicians working on microsurgery has also increased steadily. During surgi-cal management in daily practice, the thickness of periodontal tissue we are handling is sometimes very thin, thus careful and delicate handling is required. In areas such as periodontal surgery, the handling of flaps greatly affects the re-sults, which has become a topic recently, microsurgery is the most effective. But the instrument will change from macrosurgery, the thickness of the thread used, the length of the needle, etc. Therefore, in this paper, I will focus on the micro instruments used for microsurgery and introduce the usage of typical ones.