The utility model discloses an assembly structure of a coil and elastic pieces of a voice coil motor assembly. The assembly structure comprises a coil brace, the coil wound on the coil brace and the two opposite lower elastic pieces arranged on the upper portion of the coil brace in a matched mode. At least two opposite protruding feet are arranged along the periphery of a protruding edge of the coil brace in the radial direction, the head end and the tail end of the coil are wound on the two opposite protruding feet respectively, and the two lower elastic pieces are welded to the portions, on the two protruding feet, of the coil respectively. When the coil is wound on the coil brace, the coil is wound on the coil brace after being wound on the protruding feet and positioned, and thus the head end and the tail end of the coil are prevented from deviating, the working procedure of manually drawing the coil ends twice is not needed, and manufacturing cost is effectively reduced; meanwhile, the lower elastic pieces can be operated through automation equipment to be arranged on the coil brace in a matched mode, the lower elastic pieces are flatly attached and soldered to the coil wound on the protruding feet, and the lower elastic pieces and the coil can be connected more firmly and will not be disconnected from each other. Thus, the quality of the voice coil motor assembly product is guaranteed, welding assembly is achieved through the automation equipment, and production efficiency is greatly improved.