The hardware platform of the virtual instrument consists of PC computer and data acquisition card (DAQ card). In this paper, virtual instrument technology is applied to the motor teaching laboratory construction. The DAQ system consists of sensors, signal conditioning circuits, data acquisition card, computer which is composed of the hardware, the signal conditioning circuit and data acquisition card. The paper proposes development of Virtual Instrument Motor Experiment Teaching System based on LabVIEW. This paper uses the LabVIEW software as a development platform, using existing equipment conditions of the laboratory to design a motor speed control system, the control of motor speed, the experimental results with high precision and efficiency.