The invention relates to a tea polyphenol production process for producing a plurality of products at the same time by one time of feeding. Tea leaves are extracted with pure water and an extracting solution is subjected to rough filtering, fine filtering and ultra-filtering and then is concentrated by a membrane to obtain a tea concentrated solution. The tea concentrated solution passes through a first macroporous resin column to obtain high-content tea polyphenol; a water washing solution of the first macroporous resin column passes through a second macroporous resin column to obtain a product catechin without a bitter and astringent taste; a water washing solution of the second macroporous resin column passes through a third macroporous resin column to obtain high-caffeine tea polyphenol; effluent liquid of the first macroporous resin column passes through a fourth macroporous resin column to obtain 40% natural theanine. The tea polyphenol production process has the characteristics of high tea leaf utilization rate, low production cost, high product purity, no utilization of any toxic solvent in a production process, good product quality and high safety; each product is a product with relatively large demanding amount in the market and the market competitiveness is strong.