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The newly abrasive jet finishing process with wheel as restraint is a kind of compound precision finishing process that combined with grinding and abrasive jet finishing machining. In the paper, the machining process validity was verified by experimental investigation. Experiments were performed with plane grinder M7120 and workpiece material Q235A steel which was ground with the surface roughness values of Ra=0.6 μm. The machined surface morphology was studied using scanning electron microscope (SEM),， metallography microscope and microcosmic geometry parameters were measured with TALYSURF5 instrument. The experimental results show that the new processing method, not only can diminish grinding defects such as severe deformation, surface layer pollution and ground burnout, but also can improve the forming precision. The experimental result was in agreement with theory analyzed and the process validity was verified.