Casting wax pattern processing device

The invention discloses a casting wax pattern processing device which comprises a working table, a lower die seat, a left hydraulic cylinder, a left ejector rod, a right hydraulic cylinder, a right ejector rod, an upper die seat, a melting cylinder, a pressurizer, a lower die and an upper die. Compared with the prior art, wax is placed into the melting cylinder to be molten in advance, the molten wax is injected into cavities of the upper die and the lower die under the action of the pressurizer to form a precise wax pattern, the left hydraulic cylinder and the right hydraulic cylinder jack up the upper die seat by the left ejector rod and the right ejector rod so as to take out the wax pattern after the wax pattern is cooled, then the wax pattern is placed into aggregates to manufacture a sand mould cavity, the wax pattern is molten and flows out of a sand mould so as to form a precise sand mould, and therefore, the precision requirement of a casting part is ensured.