It mainly has the following three aspects of significance:

1. The necessity of establishing a National Memorial Day for the Victims of the Nanjing Massacre lies in the fact that we must first put people first, cherish and revere life, and safeguard the most important thing. Basic human rights. In the Nanjing Massacre, 300,000 Chinese civilians and Chinese soldiers who laid down their weapons were killed, and the lives of the Chinese people were greatly harmed.

The necessity of establishing a national memorial day for the victims of the Nanjing Massacre also lies in the fact that we must bear in mind the history of being invaded and killed and learn from history. The Nanjing Massacre was one of the three major tragedies in World War II. It is an important part of China's history of aggression in modern times and should not be forgotten.

2. The victims were caused by the killings of the Japanese invaders during Japan’s war of aggression against China. To mourn the victims and remember history will inevitably expose the atrocities of the Japanese invaders, oppose the war of aggression, promote human civilization, and maintain world peace. The country was invaded because its national strength was weak and its sovereignty was damaged. To mourn the victims and remember the history will inevitably reflect on the causes of the national tragedy, think about countermeasures, and encourage the people to be patriotic, work hard, and strive for self-improvement.

3. National public sacrifice has an institutionalized form and is full of atmospheric appeal. The establishment of a National Memorial Day for the Victims of the Nanjing Massacre is of great significance for displaying the country's image.

This shows that China respects human rights and has a high and mature understanding of history. This is conducive to enhancing national cohesion, conducive to arousing the people and the country's emotions of suffering and crisis, conducive to the world learning and inheriting history, conducive to warning and educating the world, especially young people, conducive to communication with the international community.