As a basic part of the health monitoring system of five-hundred-meter aperture spherical telescope(FAST),the data acquisition system was researched in the paper.The sensors used for FAST were chosen considering the antologous characters of the sensors,and a;ardware system was designed based on the chosen sensors.A software system for FAST was developed using the Labview software,so a data acquisition system based on virtual instrument technology was established.Successfully application of the data acquisition system during the experiment on the FAST 30 m-model,which is an important step of FAST,affirms its support for the health monitoring system of FAST.