In a sperm collecting apparatus (1) including: a container (1) having a non-cylindrical container main unit (3) whose both end faces in a longitudinal direction are opened and two caps that are attached to and detached from the opening portions of the container main unit to open and close the opening portion a core member (10) made from gel-like resin, which is accommodated in the container main unit and has two insertion rooms extending to an inner portion of the core member from insertion ports (11) at both end faces in a longitudinal direction in the core member and a sponge layer (20) which is interposed between the core member and an inner wall of the container main unit.