Zhao Yunfei, an officer in the Kuomintang Military Intelligence Bureau who was responsible for reviewing the Communist Party’s red propaganda materials, was inspired by the truth and the perseverance of our party’s secret front fighters while reading a large amount of red propaganda materials every day. He determined that the Communist Party was the party that saved China and the people, and thus established the belief in communism. He took the risk to go to Yan'an and was developed into a secret intelligence agent by the Ministry of Social Affairs led by Comrade Li Kenong. He was then sent back to the Kuomintang Hu Zongnan troops to ambush and develop a secret radio station to communicate directly with Yan'an. Before the Liaoshen Campaign, the organization sent him to the confidential office of Liao Yaoxiang's headquarters to obtain the enemy's top-secret military intelligence in a timely manner. After the liberation of Chongqing, he relied on the favorable conditions of being familiar with the old Kuomintang military intelligence personnel to go to Chongqing to cooperate with the Public Security Bureau to eliminate the enemy's lurking spies. This secret intelligence agent of our party with firm beliefs has a unique legendary experience, and together with many other unsung heroes, he has created earth-shaking achievements.