Abstract : This paper describes the current situation of domestic instant noodle enterprises and food packaging machinery, the working principle of the food packaging machinery, and the application of programmable logic controller (PLC) and sensorless vector inverter (kV2000) on the packaging machine. Keywords : Feeder Packer tracing system Sensor-less vector inverter Dynamical following performance 1 Introduction Instant noodles are the world's second largest processed food after bread, and China is the world's largest producer and consumer of instant noodles. According to statistics, there are currently nearly 3,000 instant noodle production lines in China, with an annual production capacity of 19 billion packs and sales of 22.2 billion RMB. Both production and sales have maintained a growth rate of over 30%, far exceeding the national average growth rate of 20.6% for the food industry. Data shows that with the adjustment of people's dietary structure and changes in eating habits, as well as the continuous development of my country's economy, the food packaging machinery industry has been presented with excellent opportunities, promoting the rapid development of the food processing industry and creating a large demand for high-quality food packaging machinery. The ultimate role of food machinery is to improve productivity and product diversification. [b][align=center]For more details, please click: Application of Frequency Converters in Food Packaging Machines[/align][/b]