The present invention realizes a medicinal powder weighing system that contributes to reduction of burden or shortening of hours involved in manual weighing of medicinal powder while minimizing an increase in installation space and costs. With respect to a system that is provided with an information processing device 20+31, a screen display 33, a first information reader 36, a weighing device 37, and an output device 38, and that, upon selection, as a dispensing subject, of a first medicinal powder by manual weighing, causes corresponding dispensing direction information 34 to be displayed on the screen display 33 on the basis of first dispensing information 23 for the purpose of performing dispensing of medicinal powder from a first medicinal powder container (50) to a conveyance container (70) by manual weighing, a metering device 40 is additionally provided, the metering device being equipped with a second information reader 43 and metering units 44, 45. Upon selection as a dispensing subject, of a second medicinal powder that can be automatically metered, corresponding dispensing direction information 34 is caused to be displayed on the screen display 33 on the basis of second dispensing information 24 and at the same time, the metering device 40 is caused to operate in accordance with reading by the second information reader 43.La présente invention concerne un système de pesée de poudre médicinale qui contribue à la réduction de charge ou raccourcit les heures impliquées dans la pesée manuelle de poudre médicinale tout en réduisant une augmentation de l'espace d'installation et les coûts. Concernant un système qui est pourvu d'un dispositif de traitement d'informations (20+31), d'un affichage par écran (33), d'un premier lecteur d'informations (36), d'un dispositif de pesée (37), et d'un dispositif de sortie (38), et qui, lors de la sélection, en tant que sujet de distribution, d'une première poudre médicinale par pesée manuelle, amène les informations de dire
