The utility model relates to a cover component of a mushroom culture bag.It is arranged at an open end of a space bag body.The cover component of the mushroom culture bag comprises a plug set.Corresponding plug into the opening end；One cover,It includes one top and one cover.A convex part is connected between the top part and the cover part.At least one stop is arranged at the top toward the convex part.The top part and the cover part form a ring groove around the convex part.The convex part is provided with a plurality of air holes.The baffle part corresponds to the air hole.The outer side of the top is an arc.The curved surface is inclined to the cover part.The cover is detachable and is arranged on the plug sleeve.The invention provides a mushroom culture bag, which comprises the space bag body, the plug sleeve and the cover, so that the cover can be detachable on the plug sleeve, and the plug sleeve is correspondingly inserted into the opening end of the space bag body.一種菇類培養包之封蓋組件，組設於一太空包本體的一開口端，該菇類培養包之封蓋組件包括：一塞套，對應塞入該開口端；一封蓋，包括相對之一頂部及一蓋部，該頂部與該蓋部之間連接有一凸部，該頂部朝該凸部設有至少一擋部，該頂部與該蓋部在該凸部周緣形成一環凹槽，該凸部設有複數透氣孔，前述擋部對應前述透氣孔，該頂部之外側係為一弧面，該弧面朝該蓋部傾斜，該封蓋可拆地罩設於該塞套。本創作並提供一種菇類培養包，包含上述太空包本體、該塞套及該封蓋，使該封蓋可拆地罩設於該塞套，並將該塞套對應塞入該太空包本體之開口端。
