An electric motor control device for controlling an electric motor, having saliency, by an inverter of a vector control scheme, the electric motor control device, comprising: a fundamental electric-current instruction generator for calculating and outputting a d-axis fundamental electric-current instruction and a q-axis fundamental electric-current instruction based on a torque instruction value (T*) for thereby outputting a fundamental torque from the electric motor that follows the torque instruction value (T*); a position dependency component generator for outputting a position dependency component of the electric motor, the position dependency component comprising a function having a value in accordance with a rotational position of the electric motor detected by a rotational position detector; an electric current correction instruction calculator for calculating a d-axis current correction instruction and a q-axis current correction instruction from said d-axis fundamental electric-current instruction and said q-axis fundamental electric-current instruction, and from said position dependency component; an electric current correction instruction superposition unit for generating a d-axis electric current instruction by performing superposition of said d-axis current correction instruction on said d-axis fundamental electric-current instruction, and for generating a q-axis electric current instruction by performing superposition of said q-axis current correction instruction on said q-axis fundamental electric-current instruction; and an electric current controller for controlling an electric current to flow through the electric motor by way of the inverter, based on the d-axis electric current instruction and the q-axis electric current instruction, wherein: the electric current correction instruction calculator is configured to calculate a ratio being determined in advance to become a magnitude of said d-axis current correction instruction and that of said q-axis current correction instruction, and said ratio is preliminarily specified or specified in accordance with a state of the electric motor; characterized by said ratio is based on a sensitivity setting-value being a ratio between an error of a median value of armature interlinkage magnetic-flux of the electric motor and an error of a median value of inductance thereof. a fundamental electric-current instruction generator for calculating and outputting a d-axis fundamental electric-current instruction and a q-axis fundamental electric-current instruction based on a torque instruction value (T*) for thereby outputting a fundamental torque from the electric motor that follows the torque instruction value (T*); a position dependency component generator for outputting a position dependency component of the electric motor, the position dependency component comprising a function having a value in accordance with a rotational position of the electric motor detected by a rotational position detector; an electric current correction instruction calculator for calculating a d-axis current correction instruction and a q-axis current correction instruction from said d-axis fundamental electric-current instruction and said q-axis fundamental electric-current instruction, and from said position dependency component; an electric current correction instruction superposition unit for generating a d-axis electric current instruction by performing superposition of said d-axis current correction instruction on said d-axis fundamental electric-current instruction, and for generating a q-axis electric current instruction by performing superposition of said q-axis current correction instruction on said q-axis fundamental electric-current instruction; and an electric current controller for controlling an electric current to flow through the electric motor by way of the inverter, based on the d-axis electric current instruction and the q-axis electric current instruction, wherein: the electric current correction instruction calculator is configured to calculate a ratio being determined in advance to become a magnitude of said d-axis current correction instruction and that of said q-axis current correction instruction, and said ratio is preliminarily specified or specified in accordance with a state of the electric motor; characterized by said ratio is based on a sensitivity setting-value being a ratio between an error of a median value of armature interlinkage magnetic-flux of the electric motor and an error of a median value of inductance thereof. the electric current correction instruction calculator is configured to calculate a ratio being determined in advance to become a magnitude of said d-axis current correction instruction and that of said q-axis current correction instruction, and said ratio is preliminarily specified or specified in accordance with a state of the electric motor; characterized by said ratio is based on a sensitivity setting-value being a ratio between an error of a median value of armature interlinkage magnetic-flux of the electric motor and an error of a median value of inductance thereof.