In recent years, because of the application and popularity of smart phones, the demand for precision glue in the mobile industry has also begun to improve. And with the gradual increase of demand for mobile phones, whether the precision or dispensing speed of traditional dispensing machines can not meet the needs of dispensing in large enterprises for a long time. Therefore, they have switched to a large LED dispensing machine dispensing dispensing machine that can achieve large quantities of dispensing and high dispensing accuracy. However, because the price of such dispensing equipment is too expensive, some small and medium-sized enterprises can't use this dispensing machine. The advantages of large LED dispensing machine are closely related to its characteristics. Because it has the characteristics of dispensing for LED, it uses high precision metering dispensing. In order to improve the density of dispensing, the dispensing machine not only uses electric drive as a power form, but also carries vision system and three axis positioning system to achieve precise positioning of dispensing coordinates. It also has a large table of dispensing products bearing, the work station can not only be used for large dispensing dispensing products, but also a number of additional dispensing arm for recycling dispensing operation, the main reason is that the dispensing efficiency of large LED dispensing machine than the general high confidential dispensing.