Abstract: Green tea is an important herb and its products are extensively used in the traditional Chinese medicinal system through various formulations. Several reports have revealed its beneficial usage and medicinal aspects for various ailments. Consumption of green tea has gained special attention and popularity in various sectors of the modern era of changing lifestyle. This review aimed to extend the current knowledge on the modes of action and beneficial applications of green tea in humans and animals for safeguarding different health issues. The nutritional, immunological, pharmacological and physiological functionalities of green tea are because of the available bioactive components like caffeine, L-theanine, polyphenols/flavonoids and others. It possesses multi-beneficial potential in treating and preventing various disorders of animals and humans, as well as promoting animal (dairy, piggery and goatry) and poultry industry. The present review provides insights on the modes of action and beneficial applications of green tea, which will be useful for nutritionists, pharmacists, physiologists, researchers, veterinarians and animal and poultry producers. Future research emphasis and promotional avenues are needed to explore its potential therapeutic applications for designing appropriate pharmaceuticals, complementary medicines and effective drugs to popularize and propagate its multidimensional health benefits.