The research work explores computer-aided approach to the design of ten different couplings, viza viz: flange, solid rigid, hollow rigid, old ham/ cross-sliding, pin type flexible, sleeve, seller cone/compression, split muff, pulley flange and fairbian’s lap-box couplings. The approach utilizesstandard design equations of these couplings and link them together in computer software todetermine the design parameters of the couplings. The work reviews the procedural stepsinvolved in the design of couplings and the development of the software package using java as atool for the design and dratfting of couplings. The design software named COUPLINGCADcombines with sketch template of a single process so as to generate the required parameters ofthe couplings. The COUPLINGCAD was tested with a number of case studies and the resultsobtained therein were quite satisfactory.