Jiang Weiguo nominally became the second son of Chiang Kai-shek. Jiang Weiguo is not Chiang Kai-shek's own son, but Chiang Kai-shek regards him as a parent-child, so he is in the genealogy. After Jiang Weiguo arrived in Xikou, he was raised and cared for by the Chiang family like Jiang Jingguo. He called Mrs. Wang his grandmother. Chiang Kai-shek treated Jiang Weiguo as his own, and Jiang Weiguo had deep feelings for his "father". As long as Jiang Weiguo said he missed his father, Chiang Kai-shek would pull him to his side. People often see Chiang Kai-shek holding Guo Wei in his arms and sometimes letting him ride on his shoulders, which is very close. Like Jiang Jingguo, Chiang Kai-shek was very strict about Jiang Weiguo's education. A few years later, the boy became a famous second-class general of the national army and the secretary-general of the National Security Committee of Taiwan Province provincial authorities.

At the beginning of 1989, a newspaper published a report about his life for the first time publicly. His surname is still a mystery, saying that "whether he is the son of Chiang Kai-shek or the son of Dai has not been proved to be a mystery" and "I hope to find more information to find out" and so on. "Dai's son was adopted by Chiang Kai-shek." This is what Mr. Mao Bingyue, deputy director of Fenghua County Committee of the Chinese Revolutionary Committee, personally heard from Sister Chen Zhijian who taught Jiang Weiguo's foster mother Yao Yecheng to study culture. She also said that it was only because Chiang Kai-shek regarded Guo Wei as his own, his family kept it a secret, and it was not convenient for others to disclose it, so it is still unknown.

It is said that in the process of composing music, Jiang Weiguo asked his mother if she was included in the music. The composer had to tell him that it was based on his father's manuscript. Jiang Weiguo was silent and later said, "Let's talk about it in 30 years." More than 30 years later, 1984, when General Jiang Weiguo was demoted from the commander-in-chief of the Joint Service Department to the head of the Joint Training Department, he told the reporters who interviewed him that he had no "first family" lineage. Besides, it looks like Dai's son, and they have a good relationship. When talking about the relationship with Dai Anguo, Jiang Weiguo said: "I am like brothers with Anguo, and blood is thicker than water." These words prove that Jiang Weiguo and Diane are half brothers. Jiang Weiguo's outspoken nature can say these words, which seems to confirm the legend about the mystery of his decades of political experience. According to another rumor, Michiko Jinyuan has not disappeared. She keeps in touch with Jiang Weiguo by correspondence. 1949, after Jiang Weiguo arrived in Taiwan Province, she wanted to support her biological mother, but she failed to do so because of Song Meiling. 1957 In February, when Jiang Weiguo remarried Qiu Ailun after his wife died, Dai Anguo accompanied him to Tokyo to attend the wedding. It was none other than his biological mother, Michiko Jinyuan, who presided over the wedding. 1967, when Jiang Weiguo was invited to visit Japan, he realized that his mother was old, so he took her back to Taiwan Province Province to enjoy life. Michiko Jinyuan died in 1977.