The invention discloses a share-free nickel starting sheet seed plate and a method for producing the nickel starting sheet through seed plate. The plate is shaped like a rectangle. The two sides of the upper portion of the rectangle are provided with symmetric circular arcs. A baffle parallel to the bottom edge of the seed plate is inserted to the lower portions of the two circular arcs in the length direction of the seed plate. The baffle and the seed plate are fixedly connected to form a cross shape. The two side edges of the baffle, the two side edges of the seed plate below the baffle andthe bottom edge of the seed plate are insulated separately. The seed plate subjected to insulating treatment forms a rectangular electric conducting part. The size of the rectangle is consistent withthat of a traditional sheared part. Through change of the top structure of the seed plate and the simple insulating mode, the four sides of the seed plate are totally insulated; the conducting area iscontrolled to be consistent with the required dimensions of an electrolytic nickel product through insulating treatment; a starting sheet with the size suitable for electrolytic nickel production isdirectly produced. There is no need to shear the thin portions of the four sides of the starting sheet. The starting sheet can be stripped off more eaily. The production efficiency is improved.