On the basis of introduction of virtual instrument, the paper studies how to acquire data with multi-thread technology based on LabWindows/CVI, and discusses the characteristic of creating task in dataacquiring. Fin-ally one application example is given.

• 在简要介绍虚拟仪器技术的基础上,对LabWindows/CVI软件开发平台下利用多线程技术实现实时数据采集进行了研究与设计,重点讨论了在数据采集过程中任务创建的特点,大大提高CPU的利用率,最后给出了应用实例。