The invention belongs to the technical field of lithium batteries, and in particular relates to a negative pole piece for a lithium battery. The negative pole piece comprises a current collector and a graphitic layer arranged on the current collector, and further comprises a protecting layer and a metal lithium layer, wherein the protecting layer is arranged on the graphitic layer; and the metal lithium layer is arranged on the protecting layer. Compared with the prior art, the negative pole piece is provided with the protecting layer on the surface of the graphitic layer, and the metal lithium layer on the surface of the protecting layer, when the negative pole piece is assembled into the lithium battery, metal lithium powder diffuses in the negative pole piece in an electrochemical manner, so that the first time efficiency of a negative pole is improved, and moreover, the energy density of the lithium battery is increased, and the capacity of the lithium battery is enhanced; and at the same time, the protecting layer is equivalent to a buffer layer which can effectively prevent the graphitic layer from internally peeling off, so that the stability of an SEI (Solid Electrolyte Interphase) membrane on the surface of the negative pole piece is improved, and the circulation performance of the battery is improved. In addition, the invention also discloses a preparation method of the negative pole piece and a lithium battery with the negative pole piece.