Abstract: Vascular anastomosis is one of the most basic techniques of microsurgery, and the quality of anastomosis largely determines the success of the surgery. With the continuous development of microsurgical techniques, more and more new technologies have been used in vascular anastomosis, but hand suturing is still the "gold standard" method for microvascular anastomosis. This article summarized the advantages and disadvantages as well as application of traditional microvascular suturing techniques and improved techniques and their methods at home and abroad, aiming to provide reference for clinical application of microvascular suturing techniques.