In recent years, the annual growth rate of global spindle motor demand is close to 9%. The production and sales volume of spindle motors have gradually increased. However, Chinese spindle motor output can not meet the needs of Chinese market. China mainly depends on importing spindle motors from other countries. There are two main reasons. Firstly, foreign spindle motor industry is mature, and Chinese spindle motor enterprises scale are much smaller. Secondly, foreign research and innovation capacity improves due to specialized division of labour while domestic manufacturers lack scientific research capacity whose technology resources are scattered, the innovation ability is weak.