There are many types of functional laryngeal surgery, and the key to success or failure is the accurate selection of indications. We should consider both the local lesion and the systemic state, and determine the appropriate surgical procedure based on the principle of “tailor-made”. Two wrong tendencies should be prevented, one is to excise too much “rather more than less”, thinking that more cuts are good. One is to excise too much “more than less”, thinking that more cuts are better than less. Secondly, they do not consider the lesion site, invasion range, mass form, growth pattern, mass size, differentiation degree, and do not leave enough safety boundary, and the surgery is too palliative, resulting in local recurrence after surgery. In particular, it is important not to make “new surgery” for cases that should be simple or are not indications in order to catch up with fashion and make up the number of cases, so that the laryngeal function suffers more damage.