Chopping board capable of standing by itself during draining

The defect that the shape of an existing chopping board with a draining function cannot be kept during draining is overcome. The utility model adopts the following technical scheme: the following technical scheme is adopted; a chopping board capable of standing by itself during draining comprises a plurality of discs nested inside and outside, the plurality of discs are equal in height, the plurality of discs comprise an outer disc, an inner disc and at least one middle disc, and vertical displacement can be generated among the outer disc, the middle disc and the inner disc, so that the chopping board is tangent between a cutting state and a draining state; the discs can rotate relative to one another, and when the discs rotate to the positions where the supporting blocks support the outersupporting parts and the supporting blocks support the middle supporting parts, the chopping board is completely unfolded and supported by the inner disc. The vegetable cutting machine has the beneficial effects that the out