After total laryngectomy, because the larynx is completely removed, the vocal cords, which are normally used for articulation, are also removed. Unlike normal exhalation through the mouth and nose, patients after total laryngectomy breathe through an anterior cervical stoma. At present, there are three main articulation methods, one is esophageal articulation, the other is tracheoesophageal articulation, and the third is artificial larynx. (1) Esophageal articulation method: Since the total laryngectomy in 1890, esophageal articulation was considered to be the best method of laryngeal function rehabilitation. This method was first discovered by See-man in 1922. The patient is trained to swallow air into the esophagus so that the esophagus stores a certain amount of air. Before the gas enters the stomach, with the help of intrathoracic pressure and the contraction of the cricopharyngeal muscle, the mucous membrane of the narrowed upper esophagus and the hypopharynx forms a vibration source, which causes the vibration source to vibrate in the form of belching and produces a fundamental sound, which can be processed by the organ of phonation to form speech, i.e. esophageal sounds. Recent studies have shown that the success rate of pronunciation can be as high as 76% under the training of a pronunciation guidance group composed of a pronunciation pathologist, an otorhinolaryngologist and a patient with good pronunciation. At the same time, esophageal articulation has the advantage that it can be pronounced without hand control, and the quality and timbre of the sound emitted are better, and the well-trained one can hardly hear the laryngeal-less person’s speech. Therefore, this ancient method of pronunciation still has the need to be promoted. Its disadvantages are poor coherence, short sound time and low pitch, which is only suitable for communication in a small and quiet environment. Improper pronunciation can often cause abdominal distension and heartburn. (2) Tracheoesophageal (pharyngeal) articulation reconstruction: It is a popular articulation method in recent years, and is also a hot spot and difficulty in the research of articulation after total laryngectomy. The purpose is to form the trachea through surgical methods. Esophagus or trachea. The gas shunt of the hypopharynx, driven by the intrapulmonary pressure, vibrates the mucous membrane and mucus of the hypopharynx and upper esophagus to emit the fundamental sounds, and forms speech after processing. (3) Artificial larynx: It is an artificial articulatory device that vibrates to produce fundamental sounds, which are then passed through the organ of speech formation to form speech. According to the different vibration sources, it can be divided into mechanical artificial larynx and electronic artificial larynx. According to mendenhall, 50% and 57% of patients who use artificial larynx continue to use it after 3 and 5 years, which is higher than esophageal and tracheoesophageal sounds. It is suitable for patients who cannot pronounce esophageal sounds or have poor pronunciation, and patients who have contraindications for tracheoesophageal reconstruction and phonation prosthesis installation. The disadvantage is that it is not very convenient to use, and it needs to be fixed by hand when talking like holding a pipe, and it cannot work with both hands at the same time when speaking; moreover, the sound quality of pronunciation is monotonous, harsh and with metallic sound.