The invention relates to the technical field of pharmaceutical preparations, and particularly discloses a pellet tablet and a preparation method thereof. The invention relates to a preparation method of a pellet tablet, which comprises the following operation steps of: under the condition of a 100,000-grade clean area, preparing main
medicine fine powder into particles with certain
plasticity, sieving the whole particles to obtain pellet particles, mixing the pellet particles and auxiliary materials according to the
mass ratio of the auxiliary materials to the pellet particles being 1: (2-6) to prepare the tablet, disinfecting the tablet, and packaging in vacuum to obtain the pellet tablet. The pellet tablets are obtained; the auxiliary materials comprise
croscarmellose sodium, silicified crospovidone,
microcrystalline cellulose,
mannitol and
sodium stearyl fumarate. The release curve of the pellet tablet is basically consistent with that of the pellet, the release end point can still reach 100%, it is indicated that the protection effect on the pellet can be remarkably enhanced through the preparation method of the pellet tablet, the minimum tensile strength of the obtained pellet tablet is 78.6 kPa, and the fracture resistance of the pellet in the tabletting process is improved.