Abstract: Water Cascade Analysis (WCA) technology was used to synthesize the water use network for batch processes，which could determine the water pinch point location and the minimum utilities target of the batch process：minimum fresh water use and wastewater discharge. Based on pinch analysis，WCA used water cascade table (WCT) to avoid the tedious drawing work of graphical methods and the solving difficulty of mathematical methods，and it could handle water-using processes with and without mass-transfer，so it was applicable to a wide range of water-using operations. The batch processes referred to in this work could be defined as the processes which operated discontinuously and every one of water-using operations had its own start and stop. So，batch processes were divided into several intervals according to the starts and stops of water-using operations. The method firstly ignored time constraints to define the global pinch and utilities target of the batch process，then identified every local water pinch location and the minimum utilities of intervals for the batch process without and with storages respectively. Water-using bottleneck of the batch process was defined by comparison of the global and local pinch，then the storage location was determined to minimize the utilities targets for the batch process. An example was used to illustrate the method，and the results showed that WCA is an effective and efficient method for the synthesis of the water use network for batch processes.