Abstract: Laser transparent ceramics has good material properties and optical properties,and has the great advantage of preparation.It's a kind of laser material with good prospects.Correspondingly,transparent ceramic laser has aroused widespread concern in recent years.The progress of the YAG ceramic laser at home and abroad was introduced.Although the history of the YAG ceramic laser is just more than a decade,the YAG ceramic laser develops rapidly;with the further development of the preparation process of the ceramic laser,it may have better development prospects.