Aiming at the low efficiency, the fixed product size and the limited dispensing precision of the traditional dispensing of manual dispensing, a research review of automatic dispensing machine based on machine vision that the efficiency and automation is much higher than manual degree is presented. Automatic operation of automatic dispensing machine is simple and controllable, not only promotes the production efficiency, but also can replace the labor force and reduce largely production costs. With its application industry in further development, its production technology is also in continuous innovation. This paper summarizes the research and application of fully automatic dispensing machine, the development process of dispensing machine and the domestic and foreign situation and the way of dispensing category, the visual identification dispensing research results and development trend, finally for the future research content made the prospect and summary.