The invention belongs to the technical field of disease prevention and control in aquaculture, in particular to a novel dosage form of a crab pharmaceutical bait. The gel-type crab feed pharmaceuticalbait comprises the following components in terms of weight percent: 0.5%-10% of edible gelatine, 1%-15% of edible starch, 20%-60% of minced fillet, 0.005%-0.5% of pharmaceutical ingredients and the balance of water. In the novel dosage form of the gel-type crab feed pharmaceutic bait, various medicines including water-soluble or water-insoluble medicines, immune reinforcing agent and the like canbe conveniently added. The novel dosage form can provide a good eating environment for crabs and achieves better in-water stability and higher medicine dispersion speed when compared with a grain-type feed. Meanwhile, the preparation process of the gel-type crab feed pharmaceutical bait is simple and suitable for preparing a plurality of pharmaceutical and immune reinforcing agent baits when laboratory or small-scale experiments are carried out. In addition, the gel-type crab feed pharmaceutical bait can also promote the eating of experimented animals and improve the experiment efficiency bychanging the composition of basic nutrients, adding animal feeding promoting agent and using other methods.