Paying attention to life, reality and participating in social change and progress are the most prominent features of China's oil paintings. The aesthetic trend of China's national traditional art has been integrated into the ideas and methods of western modeling system, which makes China's oil paintings have a national style, which is the most distinctive feature of China's oil paintings. Judging from the itinerary of China's oil paintings in the 20th century, these two points are obvious, which undoubtedly belong to the category of the form, style and spiritual content of oil paintings. Zhu Naizheng, an oil painter who has been engaged in education for many years, made an investigation from another angle. He noticed that oil painting is inseparable from modern art education in China. "After nearly half a century of ups and downs, China oil painting has built an oil painting education system with realism as the mainstream. This system was further improved and developed after the establishment of 1949 New China. After learning the experience of oil painting education in the former Soviet Union in 1950s, we gradually explored a road of oil painting teaching and creation with China national characteristics. The choice of personal language in oil painting mainly depends on the artist's subjective aesthetics. At the same time, the painter's own cultural literacy, preferences, experiences, times and nationalities also affect the painter's choice of individual language. Therefore, it is necessary to evaluate the formation of personal language in oil painting from two aspects: digital oil painting and skill tempering, and then study its artistic value.