The invention relates to a lithium ion battery electrode which comprises a current collector and active substances coating the two surfaces of the current collector. The surfaces of the current collector are of a porous structure. Sticky membranes capable of stabilizing the active substances are arranged inside pores of the porous structure. The active substances on the two surfaces of the current collector are connected through the sticky membranes. Lithium ions can penetrate through or shuttle back and forth through the sticky membranes. The active substances on the two surfaces of the current collector can be connected or communicated through the sticky membranes, embedment and dis-embedment/insertion and dis-insertion of lithium ions can be shared by the active substances on the two surfaces of the current collector, lithium dendrites appearing in the charging and discharging process when the active substances coating the two surfaces are not consistent are avoided, the active substance utilization rate is improved, the active substances of a battery are sufficiently utilized, and more importantly, the problem that lithium separation is generated when coating densities of the active substances on the two surface of the current collector are not consistent is solved.