Virtual instrument technology has been widely used in the field of measurement and control system. For analysis of multichannel data in the industrial inspection, and analyze whether the product is qualified or the data results from vibration and other accidents, designed a virtual instrument system on the software development platform LabVIEW2014. It used the method of creating waveform to transform notimestamp data into timestamp data, and the principles of filter and power spectrum. It can achieve functions of multichannel data display, wave filtering and power spectral analysis. The test results show that the system can display multichannel data intuitively and reflect the data after filtering and power spectrum analysis accurately. It can satisfy the requirements of product inspection.