with the improvement of people's living standard, people pay more attention to food safety. packaging quality is the last key barrier to ensure food safety. the quality of packaging determines the safety of food to some extent. analysis of the industry, the higher the degree of automation, it means that the food is more secure, because in the production process, the less people contact, then you can ensure that the food is less likely to be exposed to pollution. the more advanced packaging equipment, the higher the degree of automation of the machine, then in the production process, the less chance of food contact pollution. the development of packaging machinery industry in our country has great potential. with the continuous development and progress of modern science and technology, the future microelectronics, computers, industrial robots, image sensing technology and new materials will be more and more widely used in packaging machinery. automation technology in packaging machinery automation design has two characteristics: first, a separate computer control of a single manipulator. packaging machinery need to use multiple manipulators to complete the complex packaging operations. the camera takes charge of the information and monitors the working condition of the manipulator under the control of the computer, and the manipulator completes the specified action according to the instruction of the program to ensure the quality of the packaging and the packaging. two is able to highly distinguish material and thickness. the human eye can not easily distinguish the packaging process of packaging material used and the thickness of the material, therefore, the packaging machine design is often resolved by the camera and the detector thickness of the material under the control of the computer and the packaging material in the process of change. the camera can check and identify the images and display them on the screen. large distance food and packaging machinery automation level of senior high school level. high school food and packaging machinery automation products accounted for about 8% of sales and even in the full use of plc, inverter, joint low-voltage electrical products, the use of local human machine interface. low level of food and packaging machinery, automation product of uniform accounting for about 3% of sales and 5%, most still use relay control, without the use of inverter, the use of domestic low-voltage electrical products, do not use the man-machine interface. in order to improve the design efficiency, the computer simulation design technology can also be used to shorten the development cycle of packaging machinery. people's increasing requirements for packaging machinery, good flexibility and flexibility has become the packaging machinery design to achieve the goal of automation technology can perfectly realize the requirement. future packaging machinery will coincide with the trends in industrial automation, improve the overall level of packaging equipment. for example, high intelligent cnc system, dynamic load control intelligent equipment has been widely applied to the packaging machinery and equipment, so that users of the device independence, flexibility, accuracy of operation, high efficiency and compatibility with during operation. high efficiency of food processing, mainly adopting the technology of mechatronics and optical, electrical and hydraulic, automatic control technology to realize the batch production equipment is replaced by continuous production equipment, the specialized production equipment to replace the general production equipment, small production equipment replaced by human production equipment. it can significantly improve the production efficiency and economic benefit to realize the continuous production, professional operation, automatic adjustment and large-scale operation of the production line. at present, a large number of food machinery manufacturing enterprises or multinational companies, most of the development of the production line is highly automated, large-scale production of production equipment, efficient production to win the market competitiveness. packaging robot is widely used in food industry, and it is also very necessary. first of all, china's food packaging machinery to meet the rapid development needs, and actively participate in international competition, we must break the "small and scattered" industry situation, continue to move forward in the direction of "sophisticated". the industry believes that the future packaging industry will coincide with the industrial automation trends in technology development on the mechanical function of diversification, standardization, modular structure design, intelligent control, the structure of high precision in several directions. secondly, the food products have tended to be refined and diversified direction, a large number of single species products are less and less, and more varieties of small quantities of products increasingly become mainstream. in the changing trend of the environment, diversified, with a variety of switching function, can adapt to a variety of packaging materials and mold replacement packaging machine can adapt to the needs of the market. the rapid development of the food industry can not do without the help of the packaging industry. food safety problems occur frequently, consumers put forward higher requirements for food packaging. application of packaging robot in food packaging, avoid pollution two food, improve production efficiency and reduce the cost of enterprise, with the trend of the packaging industry automation needs, but also promote the improvement of the automation level of the packaging industry