The invention relates to a preparation technology of fiveleaf gynostemma herb, which comprises the following steps: picking of fresh leaves, airing, rolling, micro-oxidation promotion, fermentation, primary baking, primary spreading for cooling, primary freezing, secondary baking, secondary spreading for cooling, secondary freezing and drying. The preparation technology provided by the invention reasonably controls the enzymatic oxidation promotion of tea so that the contents such as tea protein and theanine are effectively decomposed, the solubility is high and the polyphenols are decomposed; and the prepared fiveleaf gynostemma herb tea emits strong tea aroma and is sweet and tasty while the soup color is bright orange.