Infrared spectroscopy rapid analysis method of Chinese medicine extract

The invention discloses an infrared spectroscopy rapid analysis method of a Chinese medicine extract. The infrared spectroscopy rapid analysis method comprises the following steps of: sequentially extracting medicinal materials by using petroleum ether, ethyl acetate, 95% ethanol, 60% ethanol, 30% ethanol and deionized water; carrying out reduced pressure concentration and freeze drying on each extracting solution to obtain samples of each extracted part; taking a small amount of each of the samples of each extracted part, placing the samples on infrared spectrometer attenuated total reflection (ATR) accessory, and determining infrared spectrograms of the samples of each extracted part; carrying out smoothing and baseline correction treatment on each infrared spectrogram; solving and drawing second derivative spectrums of each infrared spectrogram; and analyzing attribution of main characteristic peaks in each infrared spectrogram, namely a main body component of the samples of each extracted part can be anal