After investigation, Shen Zui found out the ins and outs of the matter, took care of family relations, and suggested to Dai Li that Yu Lexing should be dismissed. At this time, Dai Li is not the Dai Li who humbly asked Yu Lexing for advice. He is extremely afraid of the prestige established in several trainings, for fear of forming a faction that will endanger his position in the military system, so he has been doing nothing for several years and will not be reused. This time, I caught his "corruption" and wanted to overthrow him completely, so I ordered Yu Lexing to be put into a military prison in Chongqing. Yu Lexing suffered a heart attack shortly after he went to prison, and Shen Zui had to plead with Dai Li. Dai Li also considered that Yu Lexing's death in prison would cause dissatisfaction among his subordinates, so he agreed to transfer Yu Lexing to the Military Bureau Hospital, which changed from imprisonment to house arrest. This wait is a few years. It was not until 1946 that Dai Li was killed in a car crash that Yu Lexing regained his freedom and got the position of director of the Shanghai Highway Automobile Management Office through connections, nominally breaking away from the secret service.
During his spy career of more than ten years, Yu Lexing did his best, but he was eventually jailed, which really made him very dissatisfied with the Kuomintang. So, in the war of liberation, he established contact with the underground party organization in China, and built an underground party organization radio station in his home.
Since Dai Li's time, military espionage has been a lifelong occupation, and later Mao Renfeng's secret service also followed this tradition. Therefore, although Yu Lexing is no longer a spy in name, the State Secrecy Bureau does not regard him as an outsider. He is an important participant in various high-level meetings of Shanghai State Secrecy Bureau. This important protection of his identity has greatly facilitated his cooperation with the activities of underground party organizations in China, and his years of spy work experience has also made him extremely cautious.
Although Yu Lexing is careful everywhere, Mao Renfeng still knows his activities. Of course, Mao Renfeng couldn't tolerate such "betrayal", so he sent Mao Sen, director of the Shanghai Public Security Bureau, to arrest Yu Lexing, but a student of Mao Sen's Yu Lexing leaked the news in advance. When Mao Sen took people to Yu Lexing apartment on Yuyuan Road, it was already empty. In fact, Mao Sen was also a student of Yu Lexing's early special training class in Hangzhou, but Mao Sen was unambiguous in implementing the discipline of the "League". Mao Sen didn't catch Yu Lexing, thinking that he might be out temporarily, that is, he arranged his men to monitor around Yuzhai, but he didn't come back, so he rushed into Yuzhai again, only to find that the original indoor luggage and books were gone, and then searched carefully, only to find that there was a secret door on the courtyard wall, which was covered with vines. Later, the spies used this incident to laugh at Mao Sen, saying that he was a tiger who learned from a cat, and he didn't learn the last trick.
Although Mao Renfeng failed to catch Yu Lexing, he was always uneasy about Yu Lexing staying in Shanghai, so he specifically told Wang Fangnan, the stationmaster of Shanghai Station of the State Secrecy Bureau, "Yu Lexing is a capable person, hoping to get him to Taiwan Province, and don't let him stay in Shanghai and be used by the * * * production party". But at that time, Shanghai was close to liberation, and the agents of the State Secrecy Bureau had no energy to look for him again. Yu Lexing was safely liberated in Shanghai.
After the liberation of Shanghai, Chen Hope, the director of the Liaison Department in Shanghai, instigated the Shen Zui Uprising through the relationship, because Shen Zui was also the stationmaster of Yunnan Station of the Secrecy Bureau at this time, and was an important person in charge of the Southwest Secret Service Organization. So, Yu Lexing wrote a letter to Shen Zui, and a comrade who was trained in Linli training class took this letter to Kunming. Unexpectedly, at that time, Yunnan was searching under the orders of Chiang Kai-shek. In this case, the comrades with letters were unable to meet Shen Zui and returned to Shanghai. Yu Lexing was annoyed that Shen Zui failed to take this opportunity to go to the light and lamented, "I led him astray and ruined him."
Later, Yu Lexing was sent to a machinery factory as an engineer. During the War to Resist U.S. Aggression and Aid Korea, the products he was in charge of cut corners, so in the "Three Anti-five evils" movement, he was arrested and imprisoned because of the current situation and historical problems. Soon, he died in prison, ending his tortuous and complicated life.