The invention relates to panax japonicus tablets and a preparation method thereof and belongs to the technical field of medicines. The method comprises the steps of soaking one part of panax japonicussubmicron powder in water, and then, separating filtrate from decoction dregs; dissolving hydroxypropyl methylcellulose in the filtrate, so as to obtain a binder; sprinkling the binder to a mixture of lactose, pregelatinized starch, the other part of panax japonicus submicron powder and the decoction dregs while stirring so as to prepare damp mass, then, carrying out screening, drying, and mixingwith magnesium stearate, and then, carrying out tabletting. The panax japonicus tablets rich in nutritional ingredients such as notoginsenoside R1, ginsenoside Re, ginsenoside Rb1, ginsenoside Rd, ginsenoside Rg1 and ginsenoside Rg3 have the characteristic of convenience in carrying and taking. The panax japonicus tablets have the actions of activating blood circulation to dissipate blood stasis,arresting bleeding and alleviating pain, strengthening body, enhancing immunity, resisting fatigue and the like.