The invention relates to a metal mount fixing point structure for a sandwich composite material and a manufacturing method thereof. The structure comprises the sandwich composite material, a pultrusion bar, a steel plate and a steel sleeve. A through hole is formed in the sandwich composite material, the pultrusion bar is fixed to the outer side of the steel sleeve, and the steel sleeve and the pultrusion bar are both located in the through hole, a hole aligned to the through hole in the sandwich composite material is formed in the steel plate, and the sandwich composite material is connected with the steel plate. The metal mount fixing point structure for the sandwich composite material is reliable and convenient to install, the machining construction method is easy, convenient and reliable, the user satisfaction degree is extremely high, and the metal mount fixing point structure has already been successfully used for fixing a heating device of a novel deicing wind turbine blade of a certain large-scale transnational enterprise.