The optimal stator current control of synchronous reluctance machine (SynRM) considering magnetic saturation was proposed. With the finite method, the nonlinear relationship between current and inductance obtained, and then the optimal trajectory of stator current changing with load was got to realize maximum torque per ampere (MTPA) control; As to the coupling problem of traditional current loop, decoupling control considering magnetic saturation was proposed to improve the dynamic and static performance. Simulation and experimental results verified the effectiveness of the scheme.