Composite bulletproof helmet and manufacturing method thereof

The invention relates to a safety protection device of the human head, belongs to the field of protective devices, and particularly relates to a composite bulletproof helmet and a manufacturing method thereof. The composite bulletproof helmet comprises a surface layer, a middle layer arranged at the lower portion of the surface layer and a suspension buffer mat arranged on the middle layer. The surface layer is a metal helmet shell machined through an import steel plate, and the hardness HRC of the metal helmet shell is larger than or equal to 50. By means of the composite bulletproof helmet, rifle cartridges and high-speed heavy caliber fragments can be prevented, the protection capacity is high, the strength is high, and the safety protection device has the beneficial effects of being small in mass, free of influences on the combating effect and the like. According to a manufacturing method of the bulletproof helmet in the embodiment, the strength of a helmet body is improved, the weight of the helmet is reduced, and enterprise revenues are increased.