The utility model relates to a cover lifting structure of a popcorn machine.It includes a main support arranged on the opening of a can body；A plurality of composite parts are arranged at two ends of at least one of the transverse sides of the main support.Each assembly is provided with a body.The seat body is concave with a first guide groove and a second guide groove.And are respectively connected to a first positioning part and a second positioning part；At least one cover body,Each cover body is pivoted at two ends of a pivot on two combination parts on the same side of the main support.The pivot can be selected to slide in through the first guide slot and be pivoted in the first positioning part.Or sliding into and pivoting in the second positioning part through the second guide groove；When the pivot is at the first positioning part,The cover body can completely cover the opening of the can body.When the pivot is in the second positioning part,The cover covers only a part of the opening of the can body.一種爆米花機掀蓋結構，其包括有一設於一桶體之開口上之主支架；複數結合件設於主支架之橫向兩側其中至少一側的兩端，各結合件分別設有一座體，此座體凹設有一第一導槽及一第二導槽，且分別連通至一第一定位部及一第二定位部；至少一蓋體，各蓋體以一樞軸之兩端樞設於主支架同一側之兩結合件，其中樞軸可選擇經第一導槽滑入並樞設於第一定位部中，或選擇經第二導槽滑入並樞設於第二定位部中；其中樞軸位於第一定位部時，蓋體可完整蓋住桶體之開口，而樞軸位於第二定位部時，蓋體僅蓋住桶體之開口的一部分。
