Motor vibration and noise is an important index to measure motor performance. How to reduce vibration and noise is one of the important topics in the field of motor design. Analysis, calculation, and reduction of motor vibration and noise have attracted more and more attention from motor designers. Based on the three main types of noise sources of motors, this paper firstly analyzes their causes and mechanisms and secondly introduces their main research methods. Although there are many summary articles on the research of motor vibration and noise, most of the theories and research methods on the causes of various kinds of noise are not comprehensive enough, lacking theoretical calculation and analysis, especially for mechanical noise and aerodynamic noise. This paper summarizes the research in the recent ten years, especially in the recent five years, with a view to providing a reference for the future development of this field.