Tainan Normal School, the most important educational institute in south Taiwan, was founded in 1899 and became the main source of elementary school teachers when Japan's occupation of Taiwan. In 1937, Taiwan was pushed to the point of chaos of war because Japan had started to invade China, resulting in change not only the original peaceful campus life, but also of the addition of the military training and mobilization onto all normal students. Besides, previously the students of Tainan Normal School had both the rights of postponed levy and of shortened the term of military service, but now they were cancelled subsequently by the wartime policy. The senior student were all conscripted and dispatched to battlefields in China and Southeast Asia, while the younger ones were enlisted as the "Student Soldiers" and arranged to the "Student Force", under the Japanese Empire Army, to take the responsibility of the defense for the Taiwan Island. From then on, the war experiences implanted in their minds have since became their eternal memories. This paper uses the publications by Tainan Normal School (renamed National Tainan University from 2004), newspapers, memory records, and the relevant studies on this subject to discuss the military mobilization, training, fighting, and defending undergone by these students, with a view to highlighting the impact and influence of war on them.