Abstract: The ship lock hydraulic test data collecting and analyzing system based on personal computer is presented in this paper,it can be used to measure and analyze the hydrodynamic character of hydraulic tests in various locks.The system operates on revision no less than DOS3.1.All functions have a pop-up chinese menu,it can be used to data collection of 64 channels,it can also be applied to analyze the data on-line or afterwords and draw chart.