The Marxist view of heroism provides profound explanations to the nature of heroes by clarifying the relationship between heroes and the current situation, and the relationship between heroes and the masses. Therefore, cultivation of heroism in the new era can help us scientifically understand heroes, advocate heroes with rational and correct views and consciously access heroes. At the same time, the concept of heroism ia related to some twisted associations in real life, which deconstructs the image of heroes and hinders correct cultivation of heroism. Therefore, it is necessary to enrich the connotation of heroism in accordance with the changes of the times, to create images of heroism in combination with realistic scenes, and to select heroes based on the new connotation of heroism, thus to achieve the ultimate goal of active practice.