On the basis of China's traditional painting techniques, Gao combined Japanese and western painting methods, focusing on sketching, making good use of color or ink rendering, with southern characteristics, and created Lingnan painting school. The Flame of the Eastern Battlefield is the work of the painter War of Resistance against Japanese Aggression. With the help of the relationship between light and shadow processing and sketch in western painting, the painter melted into China's brush, showing the devastated scenes of the motherland's rivers and mountains bombed by Japanese imperialism. It is what the painter saw with his own eyes, and it is also a sketch of the painter. The painter created this work with great grief and indignation to arouse people's awakening and fighting spirit. Just like the seal in the lower right corner says, "Graffiti in troubled times is sad." It clearly shows the painter's patriotism and humanitarianism.