1950, the Korean war broke out, and domestic hostile elements were ready to move, trying to create trouble and chaos behind the front line of the War to Resist US Aggression and Aid Korea. In education, some foreign-funded schools have become strongholds of hostile elements, and hostility towards the government of China and the people of China often occurs. For example, girls' middle schools in Shanghai not only continue to offer religious classes under the guise of moral classes, but also use the morning meetings every day to conduct religious ceremonies and religious propaganda, poisoning students' thoughts. Qiude Girls' Junior High School forbids students to take part in founding ceremony, demonstrations to defend world peace, etc. At the same time, it is also forbidden to hold celebrations in schools. More seriously, some imperialists use foreign-funded schools as their bases for collecting information, spreading rumors and engaging in espionage.