To meet the requirements of the robot driver for automobile emission durability test，a multi-sensor data-acquisition system was designed. The reliability and real-time performance of data acquisition were improved. The hardware system consisted of sensors，conditioning circuits and a data-acquisition card ACL8112，while the software system consisted of the card driver on Linux and performance functions. The main floor data were sampled during robot driver’s working. It is shown that the system works reliably in the sampling period of 20 ms.