The invention discloses a core mould with fully built-in concrete, which comprises a core mould (1); the core mould (1) is provided with an upper bottom surface (2), a peripheral side surface (3) and a lower bottom surface (4); and the core mould is provided with a floating pull piece (5) which extends downwards from the lower bottom surface (4) of the core mould. The core mould with fully built-in concrete is characterized in that the inside of the core mould (1) is provided with at least one laminated plate(6), the floating pull piece (5) passes through a laminated layer, and the extension area of the floating pull piece (5) is positioned in the plane central point of the lower bottom surface (4) of the core mould. Therefore, local or whole strength of the core mould can be improved, the thickness of a cast-in-situ concrete rib between the core moulds with fully built-in concrete and the thickness of a cast-in-situ concrete upper plate on the core mould with fully built-in concrete can be more easily ensured, the positioning is more accurate and convenient, and the extension area of the floating pull piece is positioned in the plane central point of the lower bottom surface of the core mould, which not only can save the materials and but also can reach the best positioning effect, and the core mould is suitable for various cast-in-situ reinforced concrete or prestressed reinforced concrete hollow floors, roofs, walls, foundation bottom plates and open spandrel bridges.