These inventions provide a method and an apparatus for setting a core used in a molding apparatus that produces flaskless molds, wherein the core-setting apparatus has a simple structure and the accuracy of the positioning of the core while setting it on the lower mold is improved. The inventions comprise: moving a first carrier 52 carrying a core-handling tool 51 which is holding the core 70 toward the cope flask 2 by means of a second carrier 53 when the cope flask 2 is located at the mold-stripping mechanism 12 being lifted to a lifted position by means of a flask-rotation mechanism 13; transferring the first carrier and the core-handling tool to the cope flask which is at the lifted position; lowering the cope flask 2, the core-handling tool 51, and the first carrier 52 by means of the flask-rotation mechanism 13 so that the core 70 comes close to or contacts the lower mold; and releasing the core 70 from the core-handling tool 51 to set the core on the lower mold.