Manufacturing method of hollow jewelry

The invention discloses a method for manufacturing hollow jewelry, which comprises the following steps of: (1) arranging a material handle to form a 3D (three-dimensional) diagram of a plastic part; (2) printing a plastic part; (3) plating a noble metal plating layer on the outer side surface; (4) the plastic part is placed in a high-temperature environment, the plastic material is molten and flows out or the plastic material is burnt and disappears, and after the plastic material in the precious metal coating disappears, a precious metal cylinder is formed; and (5) sealing the opening, filling the groove with liquid precious metal, cooling, and polishing off the redundant precious metal to obtain the hollow jewelry. The hollow part is printed through the 3D printer, the precious metal cylinder is formed through electroplating, and finally the opening is closed to form the hollow gold and silver jewelry, so that the hollow part processing difficulty in a traditional processing mode is avoided, the weight of t