Piano performance requires not only skillful and excellent playing skills, but also good psychological quality and improvisation. The perfect performance is the natural language of a pianist's usual skill and mood. The various emotional activities and expressions of the overall situation in relation to the player's performance, mental issues such as the intensity and horror of the scene, seriously affect the pianist’s actual performance while playing. The piano is therefore very important for mind control. Based on this, this paper attempts to apply the current hot VR technology to piano performance and simulate the virtual piano performance scene through VR technology, so as to enhance the on-the-spot experience for piano players and continuously improve their psychological quality, so that they can better adjust their nervous bad mentality in actual combat. This article first has carried on the 3D virtual reality piano stage modeling experiment, and then selected the 20 young pianist piano training involved in day-to-day contrast test, the test group of 10 people for daily training, virtual piano stage under the environment of normal control group of 10 people ordinary daily training, training time four hours a day, for three months, all participants will take part in The Provincial Youth Piano Competition since the end of the training. The final test results showed that in the competition site, the performance level of 10 players in the test group was generally better than that of the control group. Among them, there were 2 subjects in the test group who played for a long time, while one of the control groups gave up playing in the middle. In addition, in the horizontal comparison, it is found that subjects who are older and have been learning piano for a long time have better on-the-spot mental adjustment ability and more stable performance. Boys performed better than girls, and subjects with positive, optimistic, and confident personalities performed better than those with introverted and low self-confidence.