This article combines the virtual instrumentation with the droplet analysis technique. According to the characters of the signal collected by the fiber capacity drop analyzer, the system employs dual channel acquisition. The design of the interface program is completed by invoking the Dynamic Library files of the data acquisition card, taking the advantages of the dynamic linking technology of LABVIEW. Friendly interface is designed. And the functions, such as data acquisition, display and save, are realized. The information acquisition system for the fiber capacitive drop analyzer is finally achieved by LABVIEW.