Measurement of water consumption is an important part in management and production of the printing and dyeing enterprise. It has quite important role to do well measurement of water consumption for saving water resource, strengthen economic calculation, rising up economic result and promoting upgrading of the enterprise.In order to realize online detecting and control of water washing flow, the system realizes the transfer from manual measuring water washing flow to quantitative control thus rising up control precision of consumption volume of water washing. When ensuring stable technology, water consumption volume is controlled within the reasonable range!