Aiming at the difficulty of predicting the local scour characteristics of Jinwan in Zhuhai by using existing empirical formula，a normal physical model was established in this study to study the local scour conditions after the fan infrastructure construction in Jinwan offshore wind farm. The results show that when the scour depth under the combined action of waves and currents is less than that under the action of pure currents，the wave shows the effect of backfill. The scour holes mainly occur around the pile foundation，and the maximum scour depth is found in the seaside and both sides of the monopile. The scour on the leeside is slightly shallow，and there is siltation in the wake area. The slope of scour hole is about 1：10~1：1 under the combined action of waves and currents after reaching stability of scour，and the slope before the pile is greater than that after the pile. The seabed erosion in the posterolateral side of pile foundation is more obvious under the influence of the trailing vortex shedding，the angle between the main scour zone and the flow direction is about 30° ~ 66°.