The invention relates to excavating equipment, in particular to a splitter which is arranged on an excavator and can continuously break and strip materials such as rocks and the like. The rock splitter comprises an upper hooked body and a lower hooked body which are hinged with each other and forms a complete hook shape, wherein the hook head of the lower hooked body far away from the upper hooked body is provided with breaking teeth; the upper hooked body is provided with a hydraulic device for driving the lower hooked body to rotate around the hinged part and breaking the rocks; and the upper hooked body and/or the lower hooked body is also provided with a limiting device for limiting the stroke of the lower hooked body. In the technical scheme, the rock splitter is provided with the upper hooked body and the lower hooked body which are hinged with each other, and the hydraulic device is arranged in the upper hooked body and is started to make the lower hooked body rotate around the hinged part to continuously strike the rocks when encountering the rocks with high hardness, so that the effects of breaking and stripping are achieved.