1930 was forced to join the army and served as the captain's military doctor in the 6th Regiment of Zhang Huizan 18 Division. At the end of the year, Zhang Huizan was ambushed by the Red Army, and Li Zhi joined the Red Army after being captured. Li Zhi served as the medical director in the Fourth Hospital of the Red Army, and was responsible for treating the wounded 1000 people in the first counter-campaign against "encirclement and suppression". The rescue work was quite successful, only two patients with serious abdominal injuries were not rescued.
193 1, join the China * * * production party. He has served as the medical director and dean of the No.1 1 Hospital of the Red Army, and together with,, and Chen, he is also called the "four donkey kong" in the medical field of the Central Soviet Area. After the establishment of the Red Army Health School, Li Zhi became a teacher.
During the Long March, he served as the medical director of cadre sanatorium, responsible for the medical work of two cadre sanatoriums. On the way to the Long March, He Zizhen was wounded in the abdomen by enemy planes, and Li Zhi and Sun Yizhi braved the enemy planes to strafe her. Mao Zedong quickly thanked Li Zhi after hearing the news. Li Zhi said, "He Zizhen and I are fellow villagers. We are both from Yongxin, Jiangxi, and my home is not far from hers. You can rest assured! " During the Long March, Zhou Enlai suffered from amebic dysentery and had a high fever. Mao Zedong immediately sent someone to the Red 1 Corps to ask the best doctor to treat Zhou Enlai. After examination by two doctors, Wang Bin and Li Zhi, it was diagnosed as hepatitis, which has become an amebic liver abscess and needs to be discharged urgently. However, there were no conditions for disinfection, operation and puncture on the Long March, so we could only treat dysentery with imidacloprid, and let the guards go to the mountain 60 miles away to get ice, which quickly oppressed his liver area, so that Zhou Enlai's high fever subsided and pus was discharged smoothly. After several days of rescue, Zhou Enlai was out of danger, and Wang Bin and Li Zhi saved a great man's life under such harsh conditions during the Long March. After the Long March, Li Zhi was seriously ill and unconscious. Mao Zedong came to see him specially, and then sent someone to send him a basket of eggs and wrote a note: "Comrade Li Zhi can't die."
During the period of War of Resistance against Japanese Aggression, Li Zhi was the principal of the Health School of the Ministry of Health of the Central Military Commission, the director of the Health Department of the Ministry of Health, the director of the Health Department of the Shaanxi-Gansu-Ningxia Border Region and the director of the Health Department. During his tenure as director of the Health Department of the Ministry of Health, he lived with the main leaders of the central government day and night. Once chatting with Mao Zedong, Mao Zedong learned that Li Zhi's wife was from Xiangtan, and said, "We are fellow villagers and close relatives!"! Mao Zedong once recommended Turgenev's "Hunter's Notes" to him, and suggested that he should read some poems and masterpieces besides medical books. Once Lin Biao got dysentery, Li Zhi treated him and asked Li Zhi to cure him in one day. Li Zhi asked Lin Biao, "Can Chairman give you 1000 people to fight the enemy?" Lin Biao said, "No! The strength difference is too great. " Li Zhi said: "Treating a disease, like fighting a war, depends on several conditions. One is the nature and severity of the disease, and the other is the strength of the patient's physical fitness, so we can't just see a doctor. The same disease in different people, the good speed will be different. " Li Zhi examined Lin Biao, prepared four packs of medicine for Lin Biao, and told him to take one pack with strong tea every four hours to ensure that he would be well one day. If Lin Biao doesn't believe me, take three bags. Lin Biao said to him, "Your medical skill is really brilliant!"
During the War of Liberation, Li Zhi served as the Deputy Minister of Health of the First Field Army. Li Zhi once advised Peng to get rid of swearing. Peng said shyly, I have a bad temper and can't change it. On the northwest front, Li Sheng was ill, and Peng sent him to Beijing for treatment. Zhou Enlai and Zhu De invited him to their home respectively.
After the founding of People's Republic of China (PRC), he became the health minister of the military academy. Lack of funds at that time, Li Zhi went to Beijing to find Mao Zedong, but the staff wouldn't let him in because he had a gun. Mao Zedong said: "Don't say you have a gun, even if you have a knife, you can let Comrade Li Zhi in." When Mao Zedong learned that Li Zhi wanted him to approve 30 million yuan to buy medical equipment, Mao Zedong gave him 300 million yuan and said, "You are welcome to come at any time. Li Zhi later served as the vice president of the Higher Military Academy. "