The invention discloses a method for achieving direct instantaneous torque control of a switched reluctance motor, belongs to the field of switched reluctance motors and relates to a method for achieving direct instantaneous torque control of the switched reluctance motor by adopting a small data table. The method comprises the steps of firstly building a DITC speed regulating system for the switched reluctance motor, loading control software into a microcontroller, and adopting a rotating speed and torque double closed-loop structure by the control software; loading a specially written torque on-line computation refinement program to the microcontroller of the speed regulating system and utilizing a phase current value and a rotor position value fed back from a current detection unit and a position detection unit; and correcting two phases of resultant torque during energization through a magnetic circuit saturation coefficient to obtain an accurate torque value. According to the method, high-efficiency and high-reliability direct instantaneous torque control of the switched reluctance motor is achieved through establishing a relatively small torque data table and torque pulsation of the switched reluctance motor is effectively inhibited. The method is suitable for direct instantaneous torque control of the switched reluctance motors of different phase numbers and various structures.