The principle of IFD(Incipient Failure Detection) and the programming language of virtual instrument-LabVIEW were introduced. IFD had powerful effect on failure detection of rolling bearing. LabVIEW was a kind of graphics language for virtual instrument programming. IFD was carried out with LabVIEW in the text. On foundation of ensuring test precision, efficiency of programming was promoted, and excellent interface was established. Meanwhile, the system was good at progressing and maintenance.