The invention discloses a tea garden maintenance method through mixed culture of tea and chicken. The tea garden maintenance method through the mixed culture of tea and chicken includes the following steps: A, baby chick cultivation, baby chicks are brought in the middle of September at the middle and lower reaches of Changjiang River, and the brought-in baby chicks are cultivated for two mouths conventionally; B, tea garden stocking, big chickens are stocked in a tea garden, and chickens are stocked until July of the next year to be sold; C, field management, a, during growth period of tea trees, no pesticide and herbicide is sprayed on the tea trees, and no fertilizer is applied to the tea trees; b, tea tree fertilization, fertilizer is applied to the tea garden in December of every winter and February of the next year respectively, and the applied fertilizer is formed by mixed fermentation of chicken manure generated by the chickens and rape seed cakes; and D, tea leaf harvest, tea is harvested after the tea is grown. The tea garden maintenance method through the mixed culture of tea and chicken can increase effective utilization rate of the tea garden, can use the chicken manure as non-polluted natural fertilizer applied to the tea garden, achieves organic cultivation of the tea trees really, improves quality of the tea, is environmentally-friendly and free of pollution, and protects ecological environment of the tea garden.