Aiming to the problem of sound field distribution of vocal cord vibration,this paper put forward the vibration model of vocal cords according to the vocal cords of physiological structure and vibration characteristics.Finite element method was used theoretically study the sound field orientation graph;and certain laws were obtained. The results showed that both normal and pathological vocal cord vibration,the the far field analysis could be achieved in vocal cord vibration model. The study could provide a foundation for the further study