According to the needs of Distancelearning been growing up. Network-learning service is more complicated than ever. It's a new trend of using computer-assisted technique for the teaching of experiments. By this way, we reduce the concern of safety while operation and instrument costs. Virtual Environment has reality and interaction performance. Also distributed virtual environment provides ability that multiple users could join in the same session. In our study, we determine the construction, movement and curriculum of virtual environment in the teaching of electric machinery experiments. After that we set up a virtual laboratory with reality, interaction and flexibility. In the laboratory, human-computer interaction and human-human interaction are provided for teachers and students, they could make representation, discussion and control to the machinery. As above, we approach the design of new trend of teaching experiments, also, we had established a more friendly and completely testbed.