Polyethylene terephthalate (PET) bottles for carbonation drink were produced rapidly and had long shelf life normally. The present inspection can not meet the needs of marketing. Infrared sensor method was used to detect concentrations of carbon dioxide, which was a rapid detection method for shelf life of carbonated beverages. Test results showed that using the infrared sensor testing and mathematical derivation can greatly shorten test and evaluation time with improved repeatability. This method was useful for the production enterprises and downstream companies to accurately forecast the shelves cycle. It is also useful to protect the consumers’ interests. Infrared sensor method can also test the temperature effect on the permeation of carbon dioxide, thus the tough storage environment and the storage cycle can be analyzed.