At the time of the Anti-Japanese War, Professor Zhang Huiquan, who was the acting dean of the medical school of Qilu University, witnessed the miserable life of the masses of people who lacked medical treatment, and proposed to organize a medical team to treat the masses in western Sichuan, but was opposed by the foreign teachers, and under the wrath of his resignation from the post of acting dean of the medical school, and left the University of Qilu.1948, the Kuomintang was defeated, and the president of the University of Qilu, who was the president of the University of Qilu, led some of the teachers and students to retreat to Jiangnan with their equipment and books. Teachers and students retreated to Jiangnan with equipment and books, and some people also urged Prof. Zhang to go to the medical school of Taiwan University and take up leadership positions, which was flatly refused by Prof. Zhang, who said, "I must not go with the Kuomintang." In the same year, Jinan was liberated.
In 1949, the teachers and students who moved to the south returned to Jinan one after another, and Qilu University soon resumed classes. Due to the need for work, Prof. Zhang Huiquan once again assumed the position of dean of the medical school of Qilu University. The medical school of Qilu University merged with the previously merged East China Medical College and Shandong Provincial Medical College to form the new Shandong Medical College, with Prof. Zhang Huiquan as the vice president of Shandong Medical College.
Professor Zhang Huiquan has been engaged in medical education and research for more than 60 years, and until he was in his eighties, he continued to give lectures on the stage and conduct scientific research in the laboratory. He has not only trained a large number of medical students, but also left behind an old scholar's extraordinary dedication to education and research. He published a large number of medical research papers in academic journals at home and abroad, which attracted the attention of peer experts; he successively authored books such as "Embryo Atlas", "Tissue Embryology", "Embryology", "Human Teratology", etc., of which "Histology", "Embryology", "Tissue Embryology", etc. were listed as the general teaching materials for medical schools nationwide by the Ministry of Health.
After the Cultural Revolution, the school enrolled students in the medical English class for the first time, due to the lack of teachers, Prof. Zhang Huiquan, although he was already eighty years old, but he resolutely undertook to teach the course of histoembryology in English, and took on the heavy task of lecturing like a young man. As he himself said, "It is a teacher's duty to carefully educate people." Until his death, he was always on the front line of teaching and research, and concerned about the development of China's medical career.