Take 30mg of the product, add 10ml methanol ultrasonic extraction for 15 minutes, filter, take the filtrate as the test solution. In addition, ginsenoside Rg1, Ginsenoside Rd, ginsenoside Re and ginsenoside Rb1 were added with methanol to prepare a mixed solution containing 0.2mg per LML, which was used as the mixed control solution. Then take 1g of ginseng control medicinal material, add 40ml trichloromethane, heat and reflux for 1 hour, discard the trichloromethane liquid, dry the solvent with the residue, add 0.5ml water to stir and moisten, add 10ml water to saturated n-butanol, ultrasonic treatment for 30 minutes, absorb the supernatant and add 3 times the amount of ammonia test solution, shake well, place in layers, take the upper liquid and steam dry.The residue was dissolved with methanol and used as a control medicinal solution. According to the TLC test (General Rule 0502 of The Fourth Part of Chinese Pharmacopoeias 2015), absorb 10μ L of each of the above three solutions, and point them on the same silica gel G thin layer plate. The lower layer solution below 10°C (15:40:22:10) was used as the developing agent. Then, remove and dry. Spray with 10% sulfuric acid ethanol solution, heat at 105°C until the spots show clear color, and place them under sunlight and ultraviolet lamp (365nm) for inspection. The spots or fluorescent spots of the same color should be displayed at the corresponding positions of the chromatogram of the test substance and the chromatogram of the reference substance. The spectrum is shown in Figure 1.