The invention discloses a production process of a wood-plastic plate containing tea seed shell powder. The production process comprises the following steps: 1) collecting and treating tea seed shells and by-products thereof; 2) preparing the tea seed shells into activated carbon powder; 3) the formula of the wood-plastic plate comprises the following raw materials in percentage by weight: 25 percent of PP plastic particles, 35 percent of wood powder, 10 percent of activated carbon powder and 30 percent of auxiliary; 4) preparing a wood-plastic material; 5) extruding. The production process adopts a new formula; the activated carbon powder prepared by the tea seed shells is used for replacing partial molybdenum wood powder, so that not only can the consumption of wood powder be reduced, but also a better formaldehyde adsorption effect is realized, and the better hygroscopicity is realized in a rainy season, therefore, indoor air is ensured to be fresh, dry and not wet, and indoor articles can also be prevented from being moldy through moisture protection.