Package headspace gas analyzers are designed for detecting gas components inside food packaging, utilizing non-invasive sampling techniques to obtain headspace gas data directly through puncture or optical sensors without compromising packaging integrity. The device integrates a multi-channel gas detection module capable of simultaneously analyzing concentrations of oxygen, carbon dioxide, nitrogen, and odor substances, covering a full range of 0-100%. The main body is constructed with aerospace-grade aluminum alloy, anodized for corrosion resistance and lightweight durability; equipped with a 7-inch touchscreen and USB data interface, it supports real-time curve display and export of test reports. Its advantage lies in easy operation and high detection precision (error <1%), suitable for online production line testing and laboratory sampling, helping enterprises precisely control packaging gas ratios to delay food oxidation and enhance market competitiveness.