The invention belongs to the technical field of carbon capturing and seal storage, and specifically relates to a traditional Chinese herbal medicine composition, and a preparation method and an application thereof. According to the invention, the traditional Chinese herbal medicine composition is prepared by selecting traditional Chinese herbal medicines namely Radix Wikstroemiae Indicae, Radix Ilicis Asprellae, Rhizoma Dioscoreae Tokoro, Radix Rhodomyrti, Radix Helicteris, common cnidium fruit, fig and Abrus cantoniensis Hance as raw materials. The traditional Chinese herbal medicine composition provided by the invention can promote rapid generation of carbon dioxide hydrate, solves the problems of slow formation rate, insufficient gas storage amount, long induction time and the like in the use process of a hydrate technology, realizes capturing and seal storage of carbon dioxide by utilizing the hydrate technology at the same time, reduces the content of the carbon dioxide in atmosphere, thereby controlling the trend of global warming.