A Hypericum Japonicum Thunb electuary for eliminating stasis to subdue swelling is prepared from the following raw materials (by weight): 35-45 parts of Hypericum Japonicum Thunb, 15-25 parts of Daphne odora leaf, 15-25 parts of red sage root, 10-15 parts of whole plant of Pygmaeopremna herbacea (Roxb.) Moldenke, 10-15 parts of curcuma tuber, 10-15 parts of Root and leaf of Rosthorn Bigginseng, 10-15 parts of corydalis tuber, 5-10 parts of Yunnan dutchmanspipe rhizome, 5-10 parts of mulberry bark, 5-10 parts of Strychnos nuxvomica, 5-10 parts of Herba Cladostachvdis, 5-10 parts of fortune euonymus, 4-8 parts of rock sugar, 4-8 parts of brown sugar, 4-8 parts of resistant dextrin and 4-8 parts of sorbitol. The preparation method comprises the following main steps: Step 1, pretreatment of raw materials; Step 2, crushing and mixing; Step 3, decoction and cooling; Step 4, filtration, extraction and concentration; Step 5, drying and crushing; and Step 6, sterilization and bagging. The Hypericum Japonicum Thunb electuary for eliminating stasis to subdue swelling has effects of eliminating stasis to subdue swelling, supporting right and securing the root, invigorating blood circulation and relieving pain on primary diseases and symptoms such as rheumatism, obstinate arlhralgia, numbness, paralysis, etc.