A fully automatic oyster crushing processing device, comprising a cylinder body, the top surface of the cylinder body is open, and several feeding holes are opened on the bottom surface of the cylinder body, all of which are connected to the inside of the cylinder body, and the feeding holes are evenly distributed in the cylinder body , the bottom surface of the cylinder body is fixedly connected to the top surface of the conical shell, the top surface and the bottom surface of the conical shell are both open, and the feeding holes are all connected with the inside of the conical shell, the area of the top surface of the conical shell is larger than the area of the bottom surface, and the conical shell The bottom surface of the shell is fixedly connected to the top surface of the stick box, both the top surface and the bottom surface of the stick box are open, and the stick box communicates with the inside of the conical shell. The invention can successively realize the crushing and crushing of oyster shells into powder, shorten the processing time of oyster shells, improve the processing efficiency, and limit the moving range of oyster shells by the briquetting, so as to prevent the oyster shells from being scattered and moving when the cone thorns move down, which cannot be effectively processed. Crushing, and the oyster shells are broken through the two working states of the cone, which is more uniform than the traditional crushing mode.