Virtual instrument based on computer technology as the core and instrument measuring technique developed slowly, instrument measurement technology and computer technology is a product of computer technology in combination with each other, will become an important tool in the future development direction. This paper first describes the virtual instrument technology and the development of measurement and control technology at home and abroad situation and development trend of the back, discusses the related technologies of virtual instrument and related knowledge of LabVIEW, describes the theory related to data acquisition, data acquisition system is given at the end of the article the program block diagram and the front panel. This design through the use of the data acquisition card of the LabVIEW virtual simulation, using the associated with virtual instrument technology to complete the design of multi-channel data acquisition system.