The invention discloses a ring wax welding structure which comprises a strip-shaped welding frame base. A plurality of reserved grooves are arrayed on the welding frame base along a length direction of the welding frame base; mounting grooves are formed inwards on the bottom surfaces inside the reserved grooves; chamfers are formed by the bottom surfaces inside the reserved grooves and the lateralsurface of the welding frame base; jack-up mechanisms are mounted in the mounting grooves; each jack-up mechanism comprises a concave underframe, an elastic plate arranged on the underframe and a piezoelectric plate adhered to the bottom surface of the elastic plate. Firstly, a row uniform mode is adopted, so that batch wax seeding is effectively implemented; moreover, due to adoption of the piezoelectric plate, micro arch can be formed, and ring wax is providentially in contact with wax rods, so that production efficiency and yield are improved.