According to the definition of the flow characteristics of the control valve,the boundary conditions were set.Numerical simulation analysis on the multihole sleeve valve was carried out by using the FLUENT fluid simulation software,and the flow characteristics of the valve were obtained.The circulating multistage parallel control valve flow test platform was established,the sleeve valve was detected,and the flow characteristic curve of the sleeve valve was obtained.By comparing the test data,the simulation data and the standard linear flow characteristic curve,it could be seen that the simulation flow characteristic of the test valve was consistent with the test value,and the error was within the allowable range,which was indicated that the simulation data and the test test results were reliable.The simulation data and test method can provide reference for the design and development of high precision flow control valves.