The invention discloses a method for extracting low-caffeine high-content tea polyphenol from fresh tea, belonging to the technical field of chemistry of natural products. The method comprises the following concrete steps: S1, extraction; S2, primary evaporative concentration; S3, water precipitation; S4, CF filtration; S5, resin adsorption; S6, membrane concentration; S7, secondary evaporative concentration; S8, spray drying; and S9, deironing. According to the invention, fresh tea is used as a raw material, and the disadvantages of easy pasting and uneasy filtration during extraction of crushed and sieved dry tea at a high temperature in the prior art is overcome; purified water is used as a medium for direct separation of low-caffeine high-content tea polyphenol, and leaching of a plurality of fat-soluble pesticides is reduced; the product prepared by using the method has caffeine content of lower than 1% and tea polyphenol content of 99.8%. The method has the advantages of simple operation, high separation efficiency, low cost and a short production period and is suitable for industrialized large-scale production.