The invention discloses a walnut shelling and picking device which comprises a rack, wherein a case is arranged on the rack; a compression grinding device is arranged in the case; the discharge port of the compression grinding device is provided with a stirring device; the discharge port of the stirring device is provided with a sorting unit; a power device is fixed on the lower wall of the case, and is respectively connected with the sorting unit and the compression grinding device through a V-shaped belt; and the compression grinding device is firstly used for cracking the walnut, then through the hammering of the stirring device and the wind force separation, velvet strip adhesion and other functions of a separating device, the kernel is shelled out, so the automatic kernel-husk separation is realized. A height-adjustable device is adopted, the device can be adaptive to treatment of different types of walnuts, thus the walnut shelling and picking device can be used for mass production, so the labor time is shortened, the labor is saved, the processing cost is lowered, and the problems that the walnut is difficult to shell and depends on manual shelling are better solved; and moreover, the shelling rate and kernel yield are improved, so efficient low-consumption low-cost green and clean production is realized.