Ordinary kitchen chopping boards are generally bulky and difficult to place when in use. A corner chopping board is composed of five small chopping boards into a square chopping board. When in use, a variety of chopping board combinations can be selected according to different situations. The back of the chopping board is sunken inward and can be used as a plate for placing food after turning over. The product name is a corner cutting board, which means to choose a corner of kitchen utensils suitable for you. The chopping board can be combined to produce a variety of use methods, which can be applied to most use environments, especially for the use habits of different groups of people. You can freely choose the appropriate chopping board size, which greatly facilitates the use needs of different groups.