The invention discloses a tablet distributing device (1) which comprises a tablet distributing mechanism (11), a packaging cavity (12), tablet dividing plates (13) and a driving mechanism (14), wherein the tablet distributing mechanism (11) comprises a
solid cylinder (111) and a plurality of convex edges (112) uniformly arranged from top to bottom along the axial direction of the
solid cylinder (111), and the convex edges (112) are divided into upper convex edges (1121) and lower convex edges (1122) along the radial direction of the
solid cylinder (111), and tablet distributing grooves (113) are formed among the convex edges (112); the packaging cavity (12) is arranged to
package the convex edges (112) exactly, inner threads matched with outer threads of openings of
medicine bottles (2) are arranged on the circumference of the upper part, and
medicine drain outlets (121) same with the tablet distributing grooves (113) in shape are formed in the bottom; the tablet dividing plates (13) are inserted between the upper convex edges (1121) and the lower convex edges (1122) and are arranged right above the
medicine drain outlets (121); and the driving mechanism (14) comprises a transmission gear (141) engaged to a
motor shaft (15) of a motor and a driving shaft (142) coaxial with the solid cylinder (111). An application method of the tablet distributing device (1) provided by the invention comprises the steps of calculating parameters, dividing the tablets and distributing the tablets mechanically. According to the tablet distributing device (1) and the application method thereof,the dosing quantity can be controlled simply and precisely.