Zheng Chenggong is a famous national hero in the history of China. He was brave and good at fighting, which frightened the colonists. However, Zheng Chenggong died in Taiwan Province Province shortly after his recovery, at the age of 38. In his heyday, he suddenly died of illness. A careful study of the cause of death revealed many doubts. According to the abnormal situation before his death and the background of the internal struggle of Zheng Group at that time, some people think that he was poisoned, which is the most striking statement at present. The main basis of this statement is that Zheng Group hides some dangerous factors. Zheng Chenggong, who is sexually violent, has strict usage. Zheng's subordinates, including his elders and relatives, were sentenced to death, and many people panicked.

Many of them defected under the temptation of Qing court officials, and the internal relations of Zheng Group were extremely tense. Wu legend records that the Qing court bought traitors for assassination. Therefore, if someone tried to assassinate Zheng Chenggong in Taiwan Province Island, it was probably the background of the Qing court. A major problem is the mysterious death of Ma Xin. Ma Xin used to be the military commander of A Qing, and later became Zheng Chenggong's confidant. On the day Zheng Chenggong died, he recommended a doctor to manage a post. Zheng Chenggong died in the night. He died suddenly without getting sick. According to Li Guangdi, Ma Xin died the day after Zheng Chenggong's death. According to Jiang Risheng's Story of Taiwan Province, his death was only five days apart from Zheng Chenggong's death.

Therefore, Ma Xin may be directly involved in the murder of Zheng Chenggong, but he was killed before he was killed. Zheng Chenggong's condition before his death is very similar to the symptoms of poisoning attack after poisoning. In addition, Charlene Marilynn Dangelo's "Min Hai Yue Shi" records that Zheng Chenggong, the last governor of Zheng Chenggong, successfully put the drugs into the ground after mixing them, thus successfully realizing "helping the people to complain". Zheng Chenggong may have noticed that someone murdered himself, but it was too late. People have doubts about their brothers Zheng Mingjun, Zheng and others, especially. In the early days of the return of Taiwan Province Province, the Zheng regime faced financial difficulties, but secretly left more than 300,000 silver dollars in Japan for other purposes. After death, people can't wait to forge their inheritance, discuss Zheng Jing's affairs, and promote ambitious but incompetent Zheng to inherit his brother.

Finally, their plot was foiled by Zheng Jing, and Zheng Tai died in prison. Zheng Mingjun and others led the troops to vote with their loved ones. According to this analysis, Zheng Taihe and others are likely to plan to kill Zheng Chenggong. They are intent on seizing power and may collude with the Qing court. When Zheng Chenggong caught a cold, they began to carry out their plan. After Zheng Chenggong's death, Zheng Jing was busy dealing with the rebellion in Zheng Tai. Later, he found Zheng Tai's huge sum in the Japanese bank and concentrated on recovering it. Because he was almost raped to death by Zheng Chenggong, he didn't study the cause of his father's death. Sea and sky are the same color, perhaps this will always be an unsolved mystery.