基于虚拟仪器开发平台LabVIEW的平台，给出了数字滤波器的设计方案。利用该滤波器对模拟信号进行了滤波和频谱分析，结果较为符合实际。在对虚拟仪器进行开发的同时，掌握LabVIEW编程语言，对虚拟仪器的构成、实现手段和开发方法有了一定的认识。 该数字滤波器操作简单，功能较多，并有很好的滤波等优点。-Based on the development platform of LabVIEW virtual instrument platform, design of digital filter is given. Use the filter to filter and analog signal spectrum analysis, the results accord well with practice even more. At the same time in the development of virtual instrument, master the LabVIEW programming language, structure, implementing method of virtual instrument and development methods have a certain understanding. The digital filter operation is simple, the function is more, and has the advantages of good filter.