A series of concrete-rockfill combination dam model tests are conducted on the basis of a small shaking table.We analyse the deformation rules of the downstream slope of this dam at different acceleration amplitudes

frequencies and durations conditions by using the conventional image tagging method.Besides

we discuss and analyze whether PIV（Particle Image Velocimetry）technology can reflect the damage process of the dam slope.The results show that:on the concrete-rockfill combination dam slope

the displacement of rockfill increases with the increase of acceleration amplitudes and vibration frequencies

and it enlarges with the increase of vibration duration

but the displacement of rockfill is stable within a certain moment and the concrete-rockfill combination dam’s movement of rockfill particles on the downstream slope is consistent with the general rules of earth rockfill dam;PIV technology is feasible for concrete-rockfill combination dam to monitor the process of vibration damage in the plane of the dam slope.It can be used to measure the process of the slope deformation until it damages

and it provides a visible method to monitor the process of vibration damage in the plane of the dam slope for subsequent concreterockfill combination dam shaking table test and similar tests.