The invention discloses a tofu skin production and preparation assembly line which sequentially comprises a soybean soaking and cleaning assembly, a soybean grinding assembly, a residue and pulp separation assembly, a press forming assembly, a tofu grinding assembly and a tofu skin forming assembly, wherein the soybean soaking and cleaning assembly is used for soaking and cleaning soybeans; the soybean grinding assembly is used for grinding the soybeans; the residue and pulp separation assembly is used for carrying out residue and pulp separation on the soybeans after grinding; the press forming assembly is used for pressing the soybean pulp after bittern adding into tofu; the tofu grinding assembly is used for grinding the tofu into tofu pulp; and the tofu skin forming assembly is used for preparing the tofu pulp into tofu skin. The tofu skin production and preparation assembly line disclosed by the invention has a simple structure; all assemblies have respective functions, so that production and preparation of the tofu skin can be effectively ensured; and the tofu skin prepared from the tofu pulp has relatively low water content, so that the shelf life of the tofu skin is effectively prolonged.