The study aimed to classify and analyze about the winter cap in the literature of the Joseon Period, as the period of using, synonyms, user, shape and materials. The following are the result of the study. 1. The winter caps can be classified into two kinds of group by times. The first ones have been used continuously during the whole Joseon Dynasty, for example, Nanmo(煖帽, 暖帽), Ieom(耳掩) and Pigyeon(披肩). These names are winter caps for the bureaucracy. The second ones have been used a part of the Joseon Period. Some of the names used in the first half of the Joseon Period, for example, Mogwan(毛冠), Chopigwan(貂皮冠), Chogwan(貂冠) and Seobokpigwan(鼠腹皮冠). The other names used in the latter half of the Joseon Period, for example, Noepo(腦包), Nanja(暖子), Jeomgyeon, Chageompi(遮?皮), Pimaho(皮馬虎), Wibo, Chipo, pungryeong(風領), Nani(煖耳), Hohang(護項), Hwihang(揮項), Manseonduri, Pungcha(風遮), Samsangeon(三山巾), Iwi(耳衣), Aekeom(額掩), Yangjeongeon(凉轉巾), Bolkki, Ayam and Guile. 2. Synonyms with connoting relationship in which one name perfectly connotes meaning of another name are Nanmo, Nani and Pigyen, Nanmo connotes Ieom, Chomo, Homo, Iwi and Hwihang. Nani connotes Hwihang, Hoieom and Pungcha. Pigyen connotes Hwihang and Ieom. In these cases, the range of the meaning of clothing terms can be confirmed since names with broad meaning connote names with narrow meaning. 3. Some names related with the other names, as the user, shape and materials, for example, Ieom, Hwihang and Pungcha.