PROBLEM TO BE SOLVED: To provide a medical solution filling device that can prevent air from remaining in a medical solution storage part and that enables the medical solution storage part to be easily filled with a medical solution.SOLUTION: A medical solution filling device 1 includes a cabinet 11 capable of being gripped, an attachment part 21, a suction-side connection port 55, and a suction mechanism 13. The suction mechanism 13 sucks in gas within a medical solution storage part 62 via the suction-side connection port 55. When the gas within the medical solution storage part 62 is sucked in by the suction mechanism 13, a medical solution is infilled into the medical solution storage part 62 from a medical solution vessel 4 connected to a filling port 62a.COPYRIGHT: (C)2015,JPO&INPIT【課題】薬液貯蔵部内に空気が残留することを防ぐことができ、容易に薬液貯蔵部に薬液を充填することができる薬液充填装置を提供する。【解決手段】薬液充填装置1は、握持可能な筐体11と、装着部21と、吸引側接続ポート55と、吸引機構13と、を備えている。吸引機構13は、吸引側接続ポート55を介して薬液貯蔵部62の内部の気体を吸引する。そして、吸引機構13により薬液貯蔵部62の気体を吸引した際、充填ポート62aに接続された薬液容器4から薬液が薬液貯蔵部62に充填される。【選択図】図2