The invention provides a tablet divider and feeder. A tablet T is divided without moving a cutter and divided tablets T1, T2 are fed one by one. A rotor 24 is installed in a container 21 receiving the tablets T. A rotor receiving part of the container has a barrel shape with a bottom section formed with a discharge port 27, and a fixing blade 33 is installed outside the rotor receiving part. Recesses 25 are formed on an entire lateral side of the rotor at a regular interval to receive a tablet. A peripheral groove is formed on the entire lateral side of the rotor and a fixing blade and a support plate are inserted into the peripheral groove. The fixing blade divides the tablet, which is accommodated in the recess and move while being guided along an inner wall of the rotor receiving part as the rotor rotates. A lower divided tablet T1 is discharged to the discharge port 27 and an upper divided tablet T2 is kept on the fixing blade. The upper divided tablet is discharged as the rotor further rotates.