Despite a satisfactory primary repair, velopharyngeal insufficiency (VPI) may be a sequel of soft palate clefts, resulting in hypernasality and phonation disorders. In order to increase the function of the pharyngeal flap during a secondary pharyngoplasty, we have developed a strip pharyngoplasty technique involving the middle constrictor muscle of the pharynx. This article describes the successive steps of the intervention and discuss its indications, advantages and limitations. Strip pharyngoplasty as a secondary functional surgery for persistent VPI after primary cleft palate repair is an attractive surgical procedure, particularly adapted to cases with defective muscle contraction by providing a muscle contingent in addition to the mucosal flap.