A chemical solution supply apparatus (1) that comprises: a container (10)； and a chemical solution supply implement (20) that, when connected to an opening part (14), can switch between a state wherein the inside of the container (10) is sealed and a state wherein a chemical solution that is inside a storage part (12) can be supplied to the outside of the container (10). The chemical solution supply implement (20) has a base body (30) and a supply body (50). The base body (30) has: a retaining part (40)； a pressing part (42)； and a regulation part (34) that, by coming into contact with the supply body (50) when the supply body (50) has been pressed so as to oppose the pressing force of the pressing part (42), regulates displacement of the supply body (50). The supply body (50) forms a supply flow path by separating from the retaining part (40) and obstructs the supply flow path by contacting the retaining part (40).
