Slip mechanism of ripple dislocation has been investigated. A tension stress was applied in the polydimethylsiloxane (PDMS) film, next the following steps was should be done: fixed tensile strain, sputtering a gold layer on the surface of the film, releasing the tensile strain, a large-scale area ripple structure is formed. During the process of forming the ripple structure, there will be the ripple dislocations, the cracks and the oriented surface cracks simultaneously appearing within the ripple structure. In addition, this study also explored the amount of tensile stress and tensile strain effect on the slip velocity of the ripple dislocation. The slip kinetic of ripple dislocation obeys the Newton motion law and the slip velocity of ripple dislocation increases in tensile stress increase or decreases in tensile strain.