Abstract: A large number of experiments are needed to verify the robot during its secondary development and factory inspection. At present, the experimental platform has some disadvantages such as high cost, independent virtual-reality, high closure and heavy computation workload. Based on the above problems, digital twin technology is introduced to design a robot platform based on digital twin.Based on the digital twin technology, a robot experimental platform was developed. An open hardware platform was designed and built to directly show the motion axis and control system of the robot. The digital twin model was established in Tecnomatix and an communication network based on Modbus TCP, OPC UA and other communication modes was constructed. The data to be collected was analyzed, and the relevant data processing programs were written, which realized the virtual reality synchronization and reduced the operation and maintenance cost. A series of experiments were carried out on the experimental platform. The results show that the platform has reliable accuracy and can accurately and reliably realize the coordinate system calibration of industrial robot, and the body control of industrial robot and the cooperative control with peripheral equipment.