We successfully built a unique architecture of FeF3 center dot 0.33H(2)O, a self-supported, binder-free vertical nanosheets array directly growing on Ti foil by a simple solvothermal approach and firstly use graphene quantum dots to surface modification. The high specific surface area of 2D nanosheets and high conductivity of graphene quantum dots provide an expressway for charge transfer and ion transport. This unique structural design endows a capacity of 161.5 mAh g(-1) at 1 C and a capability of 117 mAh g(-1) at a high current density of 4 Ag-1 (20 C). Graphene quantum dots surface modification can stabilize the structure and reduce possible side reactions, making the cycle performance greatly improved. Even cycled over 1000 times at 2 C the capacity attenuation rate is as low as 0.03% per cycle.