The invention discloses dragon's blood tablets and a preparation method thereof. The dragon's blood tablets comprise the following raw materials in parts by weight: 2-6 parts of dragon's blood, 15-25parts of fructus rosae laevigatae, 19-27 parts of eucalyptus robusta leaf, 23-31 parts of terminalia, and 5-12 parts of pokeberry root. The preparation method comprises the following steps: crushing terminalia and pokeberry root, adding absolute ethyl alcohol and stirring the materials in a sealed manner, then heating and stirring the materials without sealing; adding water for refrigeration, performing melting, and drying the materials to prepare a mixture A; adding water in eucalyptus robusta leaf and fructus rosae laevigatae, decocting the materials, and filtering the materials and taking afiltrate to prepare a mixture B; crushing dragon's blood, mixing the crushed dragon's blood with the mixture B, performing ultrasound, performing centrifugation and taking a supernatant, adding the mixture A and stirring the materials until the materials are dried, and compacting the materials into tablets. The tablets have the characteristics of obvious haemostasis effect, fast effectiveness, notoxic and side effect, and no scars after healing, and can be widely used for the fields of internal haemorrhage, external hemorrhage and surgical hemostasis. The preparation method has the advantages of simple process, simple raw material, safety and reliability, and obvious effect, and is adapted to industrial production.