In order to establish a method to quickly and accurately distinguish and inspect disposable chopstick plastic packaging bags extracted from the site, an infrared spectrometer and an experimental method of Smart Performer sampler were used to analyze the collected samples of disposable chopstick packaging bags of 40 different brands, different places of sale and different batches. According to the difference of the peak number, peak position and peak strength of the absorption peak in the infrared spectrogram, the collected samples of the chopsticks plastic packaging bag can be distinguished scientifically and effectively by analyzing and summarizing the differences of the infrared spectrum characteristics of various chopsticks plastic packaging bag samples. The reproducibility of the samples, the minimum amount of detection and the influence of contamination were also discussed. The experimental results show that the test method of disposable chopsticks plastic bags samples is simple rapid, accurate and reliable, reproducible, without sample preparation and nondestructive examination.