The present invention discloses a method for enhancing lithium ion battery current collector and active material adhesion, the steps are as follows: 1, current collector surface plasma cleaning is performed, air or an inert gas is introduced in the cleaning process; and 2, after the current collector surface plasma cleaning is completed, a carbon source is introduced into a plasma processing chamber. A carbon-containing gas is used as a carbon source for, under vacuum state, adjusting plasma deposition radio-frequency power and operating time, the carbon-containing gas is bombarded by use of the principle of bombard, carbon atoms break away from the original molecular structure to form plasma and deposit a carbon layer on the current collector surface. The plasma deposition carbon layer is dense and uniform, and is in atomic level contact with the current collector metal surface, the carbon layer and an active material have good compatibility on the interface, and by cooperation with the use of a binder, the current collector and active material adhesion can be greatly improved. The process is simple to operate, significant in effect, and suitable for large-scale production.