The purpose of this study was to investigate the effect of a behavioral skills training involving written teaching, modeling, role-play, and feedback for performance accuracy and maintenance of discrete-trial teaching(DTT) procedures to three parents of children with developmental disabilities. Three parents of children with developmental disabilities were trained to implement discrete-trial teaching through behavioral skills training. A multiple baseline across participants design was used, consisting baseline, written instruction, modeling, role-play, feedback, and maintenance phases. The results demonstrated that behavioral skills training has improved the accuracy of DTT and maintained. Two participated parents reached mastery levels of correct implementation at the feedback phase. The results indicated that behavioral skills training could be an effective training method for parents of children with developmental disabilities.