Variation of liquid during compression of semi-solid ZK60-RE alloy at high solid content is studied in this paper.The results show that liquid path can form in a small strain.With increase the strain,the liquid path varies to decrease the stress,which means the thixotropic behaviour.When the strain rate was relatively low,liquid was squeezed out and formed liquid paths with a low speed and had enough time to gather gradually to make the flow stress progressively decrease;when the strain rate was relatively high,liquid formed liquid paths in a very short time and did not have enough time to absorb other liquid during compression.