The present invention relates to a difenidol hydrochloride dispersion tablet preparation and its preparation method. Its composition includes (by wt%) 10%-50% of difenidol hydrochloride and 50%-90% of auxiliary material, in the auxiliary material the disintegrating agent content is 5%-20% of whole medicine component, said disintegrating agent can be one kind of cross-linked PVP, low-substituted hydroxypropyl cellulose and carboxymethyl starch sodium or their mixture. The auxiliary material also includes one kind of diluting agent, adhesive, corrective and flow aid or their mixture. |