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In this paper fan performance testing system for centrifugal fan and axial fans was developed according to GB/T1236-2000 Industrial fans-Performance testing using standardized airways.The software was developed with VB and the system supports Windows XP comprehensively.The operation is simple and easy with using of graphical interface.In this system it can achieve test automation, automatic adjustment of operating conditions, automatic acquisition and processing test data, automatic test report generation and automatic drawing dimension and non-dimension fan performance curve.It was showed from the test results that the system is of high accuracy, good repeatability and stable performance.It is high degree of automation and greatly reduces the experimental time.