The invention discloses a traditional Chinese medicine capsule for treating tonsillitis and a preparation method of the capsule. The capsule comprises raw materials in parts by weight as follows: 10-15 parts of wild chrysanthemums, 5-10 parts of liquorice, 12-18 parts of rhizoma anemarrhenae, 15-20 parts of paederia scandens, 10-15 parts of honeysuckle, 5-10 parts of fructus forsythiae, 15-20 parts of watermeion peels, 10-15 parts of platycodon grandiflorum, 8-14 parts of radix scrophulariae, 5-10 parts of coptis chinensis, 10-15 parts of common sage herbs, 16-22 parts of radix scutellariae, 10-15 parts of banyan leaves, 12-18 parts of radix ophiopogonis, 16-22 parts of radix rehmanniae, 10-15 parts of rabdosia rubescens, 15-20 parts of periostracum cicada, 6-12 parts of radix angelicae, 5-10 parts of burdock seeds, 10-15 parts of fortune paulownia flowers, 15-20 parts of roughhaired holly roots, 5-10 parts of blackberry lilies, 8-14 parts of cortex moutan, 7-13 parts of common andrographis herbs and 10-15 parts of scaphium scaphigerum. The capsule has effects of heat clearing, sore-throat relieving, heat purging, toxin removing, yin nourishing, blood cooling, swelling and pain relieving, blood circulation promoting and blood stasis removing, has good treatment effects on symptoms such as sore throat and pain, dysphagia and the like caused by the acute and chronic tonsillitis and is good in absorption effect, effective in treatment, instant in effect, high in cure rate, free from toxic and side effects, safe, reliable and capable of treating both symptoms and root causes.