Abstract: A new kind of left-handed material (LHM) was proposed according to the E-shaped structure has the effctive inductance and capacitance which are essential conditions to produce negative permeability. The new structure used E-shaped split ring resonators to achieve negative permeability and wires to achieve negative permittivity. It was confirm that it can get stable Left-handed characters by effective circuit theory. Effective permeability, permeability and refractive index of a sample were derived by S-parameter retrieval method from finite-element-based simulations. Results demonstrate the obvious negative index from 11.5GHz to 14GHz. Prism refraction experiments have proved once again that the structure does have negative refractive index characteristics.