The invention discloses a traditional Chinese medicine preparation for treating senile hypothyroidism. The senile hypothyroidism belongs to the category of 'consumptive disease', and the traditional Chinese medicine thinks that senile hypothyroidism is caused by that kidney qi and spleen qi are inadequate due to inadequate natural endowment and acquired loss of nourishment, or internal injuries from constant overwork and imbalances caused by long illness, and then both the spleen and the kidney are insufficient. According to the invention, Chinese traditional medicines such as rhizoma Tupistrae chinensis, manyflower solomonseal rhizome, roots of Sandhill Tylophora, Silene conoidea, large-leaved cornel woods, textile screw pine seeds, Pleurotus citrinopileatus, flowers of Intermediate peashrub, holly leaves, and nude pronephrium rhizome which have the effects of nourishing yin and tonifying yang, tonifying kidney and spleen and promoting blood circulation to remove blood stasis are selected and decocted with water so as to obtain a decoction; through clinical trials, the total effective rate of the traditional Chinese medicine preparation reaches 93.3%, therefore, the curative effect is extremely significant.