A vigorous Fractional Order Sliding Mode Controller (FOSMC) to be used to control the speed of the DC motor. It is a computer software and simulation-based research. DC motors are one of the most versatile electric machines that widely used in industries and home automations. Many control techniques have been proposed to effectively control the position and speed of DC motor for industrial as well domestic purpose. Research is directed towards the development of state-of-the-art approach for the fractional order controller as the addition of latest classic philosophy. Fractional order control is an emerging area of research, this research presents novel fractional order sliding mode controller to control the speed of the direct current motor. Parametric uncertainties are presented in this approach and un-modelled dynamics. The fractional-sliding order is defined in accordance with the fractional calculus, and stability of system is guaranteed using Lyapunov theorem. Simulations to be carried out in MATLAB Simulink and simulation results are verified through experiments. Desirable and superior performance of proposed control scheme to be observed from simulation and experimental results.