PROBLEM TO BE SOLVED: To provide a powdered medicine weighing system which contributes to reduction of burden and time of manual operation of powdered medicine weighing while suppressing increase of installation place and cost. A powdered medicine weighing system 10 includes an information processing device 20+31, a screen display 33, a first information reader 36, a weighing device 37, and an output device 38 for performing manual weighing, and a first manual weighing device. When the powdered medicine is targeted for dispensing, the corresponding dispensing instruction information 34 is displayed on the screen display based on the first dispensing information 23, and the weighing device including the second information reader 43 and the weighing units 44 and 45. When a second powder that can be weighed automatically is set as a dispensing target by adding 40, the corresponding dispensing instruction information is displayed on the screen display based on the second dispensing information 24 and read by the second information reader. Operate the weighing device accordingly. [Selection diagram] Figure 1【課題】設置場所やコストの増大を抑えつつ手作業での散薬秤量業務の負担軽減や時間短縮に資する散薬秤量システムを提供する。【解決手段】散薬秤量システム１０は、人手秤量で行うために情報処理装置２０＋３１と画面表示器３３と第１情報読取器３６と秤量装置３７と出力装置３８とを備え、人手秤量用の第１散薬が調剤対象にされると、第１調剤用情報２３に基づいて対応する調剤指示情報３４を画面表示器に表示させ、第２情報読取器４３と計量部４４，４５とを備えた計量装置４０を付設して、自動計量可能な第２散薬が調剤対象にされると第２調剤用情報２４に基づいて対応する調剤指示情報を画面表示器に表示させるとともに第２情報読取器の読取に応じて計量装置を動作させる。【選択図】図１
