A mold for manufacturing a composite material molded product, adapted to manufacture a composite material molded product having a cross-sectional shape including at least one of a hollow, a bent portion, and a curved portion in a transverse section thereof, the mold being configured to heat curing a laminate of prepregs obtained by impregnating a fiber material with a thermosetting resin composition and half curing the thermosetting resin composition, wherein the mold comprises: a pressing body including an expansion core part that expands itself, and a pressure distribution part that is provided on a side of the composite material molded product with respect to the expansion core part and distributes pressing force by the expansion core part to the entire pressed surface, wherein when a surface on an outside of the hollow side, the bent portion, or the curved portion or an inside of the hollow, the bent portion, or the curved portion is a pressing surface in the transverse section of the composite material molded product, the pressing body has a pressure molding surface having a shape corresponding to a shape of the pressing surface; and a mold main body provided with a cavity accommodating the laminate and the pressing body inside, the cavity including an inner surface shape corresponding to a shape other than the pressing surface, wherein in the mold main body , in a state that the pressing body is disposed in the cavity , the laminate is accommodated in a molding space formed between an inner surface of the cavity and an inner surface of the pressing body , wherein the cavity accommodating the laminate of prepregs is formed between a first mold portion and a second mold portion , the expansion core part and the pressure distribution part are disposed in the cavity , and the pressure distribution part is disposed in contact with the laminate of prepregs. a pressing body including an expansion core part that expands itself, and a pressure distribution part that is provided on a side of the composite material molded product with respect to the expansion core part and distributes pressing force by the expansion core part to the entire pressed surface, wherein when a surface on an outside of the hollow side, the bent portion, or the curved portion or an inside of the hollow, the bent portion, or the curved portion is a pressing surface in the transverse section of the composite material molded product, the pressing body has a pressure molding surface having a shape corresponding to a shape of the pressing surface; and a mold main body provided with a cavity accommodating the laminate and the pressing body inside, the cavity including an inner surface shape corresponding to a shape other than the pressing surface, wherein in the mold main body , in a state that the pressing body is disposed in the cavity , the laminate is accommodated in a molding space formed between an inner surface of the cavity and an inner surface of the pressing body , wherein the cavity accommodating the laminate of prepregs is formed between a first mold portion and a second mold portion , the expansion core part and the pressure distribution part are disposed in the cavity , and the pressure distribution part is disposed in contact with the laminate of prepregs. <EOS>