The invention relates to a joint structure of a mushroom space bag cover, which comprises an upper cover, a base and a ventilating film. By using the fusion flange on the top surface of the base, the base and the upper cover are integrated after high cycle heat fusion, so that the production of the mushroom space bag, from the filling of the culture medium, the placement of the mushroom mycelium and the sealing of the cover, can be all Introduce the automatic operation system, improve the defect and inconvenience of cover assembly and cover, and effectively reduce the production cost.本創作係有關於一種菇類太空包封蓋的接合結構，包含一上蓋、一底座及一透氣薄膜，其利用該底座頂面的熔接凸緣，經由高週波熱熔後，使該底座與該上蓋接合成一體，藉以使該菇類太空包的製作，從培養基的裝填、菇類菌絲體的放置，以及封蓋的封合，可全部導入自動化作業系統，並改善封蓋組裝蓋合的缺失與不便性，有效降低生產成本者。
