Increase of the number of assembling steps and increase of waste that are drawbacks due to interposition of a urethane plate between a container and a core member (interior member) are prevented. In a sperm collecting apparatus including: a container 2 including a cylindrical container main unit 3 that has an opening portion on at least one end face in a longitudinal direction thereof and a cap 5 that is attached to and detached from the opening portion 4 of the container main unit to close and open the opening portion, and a core member 10 made from gel-like resin, which is accommodated in said container and has an insertion room 12 extending from an insertion port 11 at one end face in a longitudinal direction therein the core member includes a core main unit 50 having said insertion port and the insertion room and a plurality of ribs 51 provided upright from an outer face of the core main unit to cross one another, and sealed rooms S are formed through the outer face of the core main unit, the plurality of ribs and an inner wall of the container main unit by contact of outer end edges of the respective ribs with the inner wall of the container main unit.
