The production of vacuum packaging machinery in our country started in the 1970s and has developed relatively fast, beginning with the introduction and absorption of technology, which set a relatively high starting point. After 30 years of development, we are now able to produce various models of vacuum gas flushing packaging machines. Except for a few provinces and regions such as Xinjiang, Tibet, and Qinghai, manufacturing enterprises are spread throughout the country. However, only a few enterprises take vacuum packaging machines as their main product; most are medium and small-sized enterprises that operate concurrently in other areas. Many enterprises focus primarily on assembly. The current range of products in our country is relatively comprehensive and can basically meet market demands. The main types include single-chamber, double-chamber, conveyor belt type, tube insertion type, rotary vacuum chamber type, thermoforming, and mixed gas flushing types, mainly featuring semi-automatic operation. There are fewer fully automatic continuous, large vacuum chamber types, and vacuum packaging machines suitable for liquid packaging. There is a lack of efficient, specialized vacuum packaging machines.