There are various methods to control the induction motor. The stator frequency control is one of the simple methods to control the motor. The microcontroller based three phase induction motor speed control system can be used in many industries like cement, textile, chemical to operate the motor according to the speed. The speed of the induction motor can be controlled by use of the feedback from the motor in term of rotation per minute (rpm). The inductive magnetic sensor can be interfaced with the microcontroller and the rpm of the motor can be sensed and give to the microcontroller in the form of digital as a feedback from the motor.