A kind of cold and hot compress bag improved positioning structure,It is espespecially a kind of to form close packing connecting structure through such as thread to replace the improvement cold and hot compress bag of viscose,Bag body including one containing solid bottom and upper opening,Bag body at least contains a setting length and is formed by gauffer portion through thread etc mode； The sack element of one assembling what bag body upper opening extends downwardly at least one recessed neck； One can sack element described in elastic washer fitting made by the elastic-like material with silica gel recessed neck,It is formed by bag body gauffer portion fitting what elastic washer outer peripheral surface with thread,Then the bag body and sack element are combined into one one collar by fitting what elastic washer and bag body gauffer portion's outer peripheral surface； And such cold and hot compress bag can be greatly improved because the deterioration caused by engagement viscose damages phenomenon.一種冷熱敷袋改良定位結構，尤指一種透過如車縫線形成緊密迫緊組接結構以取代黏膠的改良冷熱敷袋，包括一含有密實底部及上開口的袋體，袋體至少含有一設定長度透過車縫線之類方式所形成的皺褶部；一組裝於袋體上開口的袋口元件向下延伸至少一凹頸部；一能以矽膠之類彈性材料所製成的彈性墊圈套合所述袋口元件的凹頸部，以車縫線所形成的袋體皺褶部套合於彈性墊圈外周面，一束套則套合於彈性墊圈及袋體皺褶部外周面將所述袋體與袋口元件組合成一體；而可大幅改善此類冷熱敷袋因接合用黏膠所造成的劣化損壞現象。
