The invention discloses a uniformly-abraded and durable assembled chopping board and belongs to the field of kitchen utensils. With the adoption of the uniformly-abraded and durable assembled chopping board, surface boards can be relatively sufficiently and uniformly abraded and the service life of the chopping board is greatly prolonged. The design is realized as follows: the uniformly-abraded and durable assembled chopping board comprises surface boards, magnetic sheets, a clamping board and magnetic blocks, wherein the clamping board is a square board with four corners which are cut to be thin and are machined, and thin parts are thin corners; one drum-shaped magnetic block is fixedly arranged at a 1/4-length part from each of two diagonal line ends of the clamping board; the upper and lower surfaces of the magnetic blocks protrude out of the surface of the clamping board; the surface boards comprise eight square boards which are 1/4 of the area of the clamping board and have the same shape and size; concave pits, which are matched with the convex parts of the magnetic blocks on the clamping board, are machined at the centers of the surface boards; the magnetic sheets, which are magnetically attracted with the magnetic blocks, are arranged on pit bottoms; and the upper and lower surfaces of the clamping board are tightly covered by connecting the two edges of each four surface boards under the magnetic actions of the magnetic blocks and the magnetic sheets. The design disclosed by the invention is applicable to domestic kitchens.