Graphite electrode has been widely applied in commercial lithium-ion battery, and the importance of graphite electrode mechanical properties are continually increasing. Understanding basic mechanical properties and interfacial peeling strength of graphite electrode will provide data support and theoretical guidance for increasing the reliability of graphite electrode. In this paper, mechanical properties and interfacial peeling strength of graphite electrodes, including fresh electrode, electrolyte soaked electrode and electrodes with different states of charge (SOC) were investigated respectively by tensile test and peeling test. The tensile test results show that the fracture mode of graphite electrode with full charge is brittle fracture, while the fracture mode of fresh electrode, soaked electrode and electrodes with full discharge is ductile fracture. In addition, the 180 degrees peeling experimental results show that the peeling force between active layer and collector with SOC=100% is higher than the value of graphite electrode with SOC =0% .When the battery discharge is completed, the peeling force between the active layer and collector will decline to slightly lower compared with fresh electrode. Fresh electrode and electrolyte soaked electrode have the similar peeling force.