Microsurgery of the hand and foot is the discipline of performing fine surgery on the hand and foot using optical magnification devices and microsurgical equipment. Traditionally, surgery is performed under the naked eye, but human vision is limited, so some surgeries can’t be performed finely, and this phenomenon also exists after the occurrence of hand and foot diseases. However, with the advancement of science and technology, it is possible to perform fine surgery with the help of some equipment, including microscopes and related microsurgical instruments, and so on, so as to be able to carry out fine treatment for some diseases of the hands and feet, which is called microsurgery of the hands and feet. In the clinic, if the hand and foot have blood vessel injury, tendon injury, nerve injury, broken finger and so on, it can be treated by microsurgery, and can achieve very good surgical results.