Dual-mode reactor core

The invention belongs to the technical field of dual-mode reactors, and particularly relates to a dual-mode reactor core. The dual-mode reactor core comprises a plurality of annular plate-shaped fuels(1), the fuels (1) are stacked to form a cylindrical reactor core active area with a through hole in the axis position, a plurality of hydrogen flow channels (3) are formed in the fuels (1), single-layer containers (4) are arranged on the outer side of the reactor core active area and the inner side of the through hole, and heat pipes (2) are arranged on the sides, not close to the fuels (1), ofthe single-layer containers (4). According to the invention, the heat pipes (2) are arranged in the upper section area of the reactor core, so that the heat pipes (2) can well operate at a proper temperature, and the heat pipes (2) are prevented from being damaged due to overheating; and the single-layer containers (4) are arranged between the heat pipes (2) and the fuels (1), vacuumizing or helium filling is not needed in