This paper proposes a model of induction motor (IM) based on the accurate maps of equivalent circuit parameters, which are determined by finite element analysis (FEA). This model fully considers the magnetic saturation and skin effect and can reflect the real state of IM in the whole operating range, especially in overload operation. The parameter maps are determined by the FEA results and formulas of parameters based on rotor currents. In order to actualize rotor flux orientation in FEA, the coordinate transformation of rotor conductor currents is analyzed and an indirect field orientation method based on rotor current is proposed. Since these maps are established in flux-oriented synchronous coordinate system, they are suited for analyzing or using in the vector control system. Finally, the comparison analysis is conducted to validate the accuracy of parameter-maps model.