Abstract: The selection of drilling parameters like drill bits, speed, feed, material and coolant is vital role while drilling of Aluminium Metal Matrix Composites (AMMCs). Taguchi L27 orthogonal array is designed based on the drilling parameters. This research work is performed drilling on Al6063/B4C composites and observed the output responses like power, thrust force, torque, temperature, amplitude and surface roughness. Selection of optimal output responses in drilling of Al6063/B4C composites using Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method and optimal parameters combination is identified.