The invention relates to a double-side knitting and cropping integrated machine and belongs to the technical field of textile machines. The machine solves the problem in the prior art that a circular knitting machine cannot perform napping during double-side knitting. The double-side knitting and cropping integrated machine is characterized in that the outer side of a needle cylinder is provided with hook cutters and cutters which are arranged radially along the needle cylinder. When lower knitting needles ascend, the hook cutters can hook yarn and pull the yarn out; when the yarn is pulled out, the cutters can cut the yarn; a rack is provided with a cropping mechanism driving the hook cutters and the cutters to perform yarn hooking, napping and cutting. Fabric knitted by the double-side knitting and cropping integrated machine has smooth surfaces without hook heads, is high in nap surface density, is high in gram weight, is not liable to nap falling, and has soft base fabric; the after-finishing steps of cropping and breaking are saved, so that the product cost is greatly saved.