The invention discloses a crusher for fruits of tung oil trees. The crusher comprises a base and an outer barrel, and further comprises rotary driving units and a crushing unit; the outer barrel is fixed to the upper surface of the base; the rotary driving units are arranged on the outer barrel and are used for driving the crushing unit to rotate; the crushing unit comprises an inner barrel, a baffle, a top cover, an outer gear ring, an inner gear ring and crushing gear sets; the inner barrel is arranged in the outer barrel and is connected to the rotary driving units; the top cover is fixed to the top of the inner barrel; the outer gear ring and the inner gear ring are concentrically arranged on the lower surface of the top cover; the baffle is arranged in the inner barrel; a plurality ofopenings are formed in the bottom of the baffle and correspond to a gap between the inner barrel and the outer barrel; and the crushing gear sets are arranged between the inner barrel and the outer barrel and are used for crushing the fruits of the tung oil trees. The crusher has the advantages that the fruits of the tung oil trees can be automatically crushed, in addition, crushing is sufficient, the efficiency is high, and the workload and the working intensity of workers can be effectively relieved.