Introduction to the battle to defend Huangyangjie: On August 30, 1928, the enemy forces from Hunan and Jiangxi organized four regiments to attack Huangyangjie. With less than one battalion, the Red Army, with the cooperation of the people, resisted in spite of dangers, repelled many enemy attacks, and successfully defended the Jinggangshan Revolutionary Base Area. "The Battle of Huangyangjie" combines real scenes, background paintings and projection keying technology. The characters in the real scenes and the characters in the background paintings are created according to visual proportions. When the audience approaches the scene, the curved background wall begins to express the atmosphere of the fierce battle. Dynamic content. At the same time, multimedia technology is used in the foreground to show the effects of shell bombing and smoke, coupled with rumbling audio and video effects, to truly reproduce the smoke-filled war scene.