A condition display device for a yarn-winding machine that is configured to determine presence of a yarn defect for a yarn drawn from a yarn winding body and to form a package by winding the yarn while removing the yarn defect from the yarn when the yarn defect is present, the condition display device comprising: a winding-condition acquisition unit configured to acquire a winding condition for winding the yarn to form the package; a determination-condition acquisition unit configured to acquire a yarn-defect determination condition for determining presence of the yarn defect; a display unit configured to display information concerning the winding condition and information concerning the yarn-defect determination condition; and a display controller configured to cause the display unit to display the information concerning the winding condition and the information concerning the yarn-defect determination condition, wherein the display controller is configured to cause the display unit to display, as the information concerning the winding condition and the information concerning the yarn-defect determination condition displayed on the display unit, the information concerning the winding condition acquired in the winding-condition acquisition unit, and the information concerning the yarn-defect determination condition for determining the presence of the yarn defect for the yarn that is wound under the winding condition acquired in the winding-condition acquisition unit, a storage unit configured to store therein the winding condition and the yarn-defect determination condition; and an association unit configured to associate the winding condition acquired in the winding-condition acquisition unit and the yarn-defect determination condition acquired in the determination-condition acquisition unit with each other and cause the storage unit to store therein the associated conditions, wherein the association unit is configured to associate with each other the winding condition acquired in the winding-condition acquisition unit, and the yarn-defect determination condition for determining presence of the yarn defect for the yarn that is wound under the winding condition acquired in the winding-condition acquisition unit, wherein the yarn-winding machine includes a winding-condition input unit to which the winding condition may be input by an operator, wherein the winding-condition acquisition unit is configured to acquire the winding condition on the basis of the input to the winding-condition input unit, and wherein the display controller is configured to extract the yarn-defect determination condition associated with the winding condition acquired in the winding-condition acquisition unit from the storage unit, and cause the display unit to display information concerning the extracted yarn-defect determination condition, and information concerning the winding condition acquired in the winding-condition acquisition unit. a winding-condition acquisition unit configured to acquire a winding condition for winding the yarn to form the package; a determination-condition acquisition unit configured to acquire a yarn-defect determination condition for determining presence of the yarn defect; a display unit configured to display information concerning the winding condition and information concerning the yarn-defect determination condition; and a display controller configured to cause the display unit to display the information concerning the winding condition and the information concerning the yarn-defect determination condition, wherein the display controller is configured to cause the display unit to display, as the information concerning the winding condition and the information concerning the yarn-defect determination condition displayed on the display unit, the information concerning the winding condition acquired in the winding-condition acquisition unit, and the information concerning the yarn-defect determination condition for determining the presence of the yarn defect for the yarn that is wound under the winding condition acquired in the winding-condition acquisition unit, a storage unit configured to store therein the winding condition and the yarn-defect determination condition; and an association unit configured to associate the winding condition acquired in the winding-condition acquisition unit and the yarn-defect determination condition acquired in the determination-condition acquisition unit with each other and cause the storage unit to store therein the associated conditions, wherein the association unit is configured to associate with each other the winding condition acquired in the winding-condition acquisition unit, and the yarn-defect determination condition for determining presence of the yarn defect for the yarn that is wound under the winding condition acquired in the winding-condition acquisition unit, wherein the yarn-winding machine includes a winding-condition input unit to which the winding condition may be input by an operator, wherein the winding-condition acquisition unit is configured to acquire the winding condition on the basis of the input to the winding-condition input unit, and wherein the display controller is configured to extract the yarn-defect determination condition associated with the winding condition acquired in the winding-condition acquisition unit from the storage unit, and cause the display unit to display information concerning the extracted yarn-defect determination condition, and information concerning the winding condition acquired in the winding-condition acquisition unit.