Freshwater plume represents a key passage for the river to deliver sediment to the coastal ocean. A wa- ter-sediment regulation scheme was implemented for the Huanghe River in 2005; in order to examine the effect of such an activity on the river plume dynamics, three cruises were carried out off the Huanghe River mouth. The prelimi- nary results of the in-situ measurements suggested that the plume pathway shifted rapidly during the period of less than twenty days, which was confirmed by satellite remote sensing data in the same period. The rapid shifts were resulted from intensive interactions between river discharge and the vary- ing bathymetry in the river mouth area. A large amount of river sediment was delivered to the coastal region during this period and mostly deposited in the mouth bar area due to jet-flow deceleration, forming a cluster of mouth bars across the river mouth, which caused the rapid shifts of the plume pathway. A water-sediment regulation scheme was implemented for the Huanghe River in 2005; in order to examine the effect of such an activity on the river plume dynamics, The prelimi- nary results of the in-situ measurements suggested that the plume path shifted rapidly during the period of less than twenty days, which was confirmed by satellite remote sensing data in the same period . The rapid shifts were caused from intensive interactions between river discharge and the vary- ing bathymetry in the river mouth area. A large amount of river sediment was delivered to the coastal region during this period and mostly deposited in the mouth bar area due to jet -flow deceleration, forming a cluster of mouth bars across the river mouth, which caused the rapid shifts of the plume pathway.