The invention discloses a traditional Chinese medicine formula for treating thyroid tumor. The traditional Chinese medicine is prepared from the following raw materials by weight: 12-15 parts of centipede, 10-13 parts of the bulb of fritillary, 12-15 parts of pseudobulubs cremastrae seu pleiones, 12-18 parts of the seed of cowherb, 10-12 parts of kelp, 8-12 parts of Xanthium sibiricum, 10-13 parts of dulcamara, 10-12 parts of subprostrate sophora, 14-17 parts of fructus polygoni orientalis, 6-8 parts of prunella vulgaris, 8-12 parts of Radix Codonopsis, 6-12 parts of Radix Astragali, 8-10 parts of dahurian angelica root, 12-18 parts of mock-strawberry, 10-12 parts of Solanum lyratum Thunb, 8-12 parts of rhizome of Manyleaf Paris, 10-13 parts of radix clematidis, 10-12 parts of monkshood, 12-18 parts of radix scrophulariae, 14-17 parts of Tripterygium wilfordii, 13-16 parts of pangolin scales, 6-8 parts of rhizoma cimicifugae, 6-12 parts of dragon's blood, 11-13 parts of rhizoma cyperi, 6-9 parts of leech and 10-13 parts of Chinese angelica. According to theories of supporting right and securing the root and promoting blood circulation to remove blood stasis in traditional Chinese medicine, the traditional Chinese medicine plays both roles of reducing phlegm and curing blood stasis, realizes the effects of clearing heat, detoxifying, resolving phlegm, dissipating nodes, activating blood to promote menstruation, dissolving swelling, supplementing qi and nourishing Yin, and has good effect and quick effectiveness in the treatment of thyroid tumor.