Provided are a medicine determination device and a medicine determination method which are capable of appropriately determining whether it is necessary to move a medicine and of improving accuracy and speed of medicine determination. In this medicine determination device and this medicine determination method, a medicine to be determined is placed in a placement unit, an image of the medicine being determined placed in the placement unit is photographed, prescription condition information that indicates a prescription condition is obtained, and when a movement execution condition is satisfied, an external force application unit is caused to execute an external force application movement to move the medicine by applying an external force to the medicine placed in the placement unit. The movement execution condition includes at least one of a first movement execution condition for which the number of the medicines being determined in the image is different from the quantity of medicine specified by the prescription condition information, and a second movement execution condition for which the shape of the medicine being determined in the image is different from the shape corresponding to the type of medicine specified by the prescription condition information.L'invention concerne un dispositif de détermination de médicament et un procédé de détermination de médicament, susceptibles de déterminer convenablement s'il est nécessaire de déplacer un médicament et d'améliorer la précision et la vitesse de détermination de médicament. Dans ce dispositif de détermination de médicament et selon ce procédé de détermination de médicament, un médicament à déterminer est placé dans une unité de placement, une image du médicament en cours de détermination, placé dans l'unité de placement, est photographiée, des informations de condition de prescription, qui indiquent une condition de prescription, sont obtenues et, lorsqu'une condition d'exécution de mouvement est vérifiée, une uni
