A sensor test experimental system based on LabVIEW is proposed in order to improve the deficiency of the traditional experiment apparatus in university, and to achieve real-time acquisition and processing of the sensor test bench data. The overall structure of the system is described, as well as the system hardware and software design solutions. Taking the capacitive sensor as a signal source, the signal goes through different hardware devices to achieve the same signal dual-channel design. Dual-channel signals are transferred to the computer by the data acquisition card. The rational allocation of LabVIEW software is the key to achieve the real-time dual-channel data acquisition and data processing. The time and accuracy of the sensor experiments are improved. The practice proves that the system has high real-time efficiency, high stabilization and high accuracy, etc, which can satisfy the requirements of the university sensor experiment program.