Visual food quality inspection device

The utility model discloses a visual food quality inspection device, belongs to the field of food safety and particularly relates to a device which is used for detecting the composition and content of gases emitted from food. The device is provided with a nitrogen gas concentration sensor, a sulfur dioxide concentration sensor, a hydrogen sulfide concentration sensor, an image sensor and a timer, wherein the nitrogen gas concentration sensor, the sulfur dioxide concentration sensor, the hydrogen sulfide concentration sensor, the image sensor and the timer are all connected with a computer, and the computer is connected with a display. According to the device, the quality of the food can be objectively inspected respectively through visual information, such as the color of the food and the like, and concentration information of sulfur dioxide and hydrogen sulfide which are emitted after the food deteriorates; compared with the prior art, the reproducibility of inspection results is better.