In the 1950s, the national government implemented Military Marriage Ban, aiming to reduce financial burden and to guard against espionage. Scholars believe that the Marriage Ban influenced the emotional life and operation mode of soldiers’ late years. In 1949, a total of 600,000 soldiers retreated to Taiwan, the majority of whom were singles aged 20~30. While the army is a closed space of male collective life where they cannot contact and communicate with the outside world normally, not to mention contacting women through normal channels. Through a national soldier's journal (1950 to 1955), the article tries to understand how the soldiers solved the sexual desire and learn their perceptive on both sexes and expectations of marriage.